2-Ethyl-5-methylpyridine

18113-81-0

Pyridine, 2-ethyl-5-methyl-

5-Methyl-2-ethyl pyridine

2-ETHYL-5-METHYL-PYRIDINE

6-Ethyl-3-picoline

5-Methyl-2-ethylpyridine

2WWW2MR72E

SCHEMBL469189

DTXSID20334051

CHEBI:179424

SB54346

BS-49493

DB-365092

E78001

EN300-7613348

5-Methylthieno[3,2-b]pyridine

1759-29-1

SCHEMBL424668

5-Methyl-thieno-[3,2-b]-pyridin

MFCD18384705

DA-20246

SY280249

E86680

2-Nonylpyridine

10523-35-0

Pyridine, 2-nonyl-

nonylpyridine

2-Nonylpyridine #

EINECS 234-073-7

SCHEMBL918855

DTXSID00147020

NS00023358

2-Butylpyridine

5058-19-5

2-Butyl-pyridine

Pyridine, 2-butyl-

54XCM5F4F7

NSC-969

butylpyridine

UNII-54XCM5F4F7

NSC969

EINECS 225-758-1

SCHEMBL64052

DTXSID00198597

NSC 969

AKOS006272770

AC-7561

SB54898

DB-020753

NS00022254

A828185

J-514860

W-105948

Q21546972

2-Hexylpyridine

1129-69-7

Pyridine, 2-hexyl-

2-n-Hexylpyridine

2-(n-Hexyl)pyridine

2-HEXYL-PYRIDINE

EINECS 214-454-4

BRN 0114710

AI3-24115

2-propyl pyridine

Pyridine, 2-(n-hexyl)-

5-20-06-00161 (Beilstein Handbook Reference)

SCHEMBL733452

64D57S7HGV

FEMA NO. 4948

FEMA 4948

DTXSID10150207

CHEBI:195229

2-C6H13(c-C5H4N)

MFCD00023552

AKOS006228412

MCULE-3873309255

AS-56684

DB-021154

CS-0152299

NS00021531

D83986

A802711

W-108630

Q63398212

4,6-DIMETHYLPYRIMIDINE

1558-17-4

4,6-Dimethyl-pyrimidine

Pyrimidine, 4,6-dimethyl-

MFCD00006116

95N99D3VHB

NSC-60686

UNII-95N99D3VHB

NSC60686

EINECS 216-314-8

NSC 60686

4,6-dimethyl-pyrmidine

SCHEMBL161508

DTXSID2061777

AKOS005169878

CS-W001988

DS-1349

MCULE-6866776039

PB24534

AC-26661

AM20080404

D4282

NS00048992

EN300-82512

4,6-Dimethylpyrimidine, >=93%, technical grade

J-650334

Q-102030

Q27271806

InChI=1/C6H8N2/c1-5-3-6(2)8-4-7-5/h3-4H,1-2H

2,3,6-TRIMETHYLPYRIDINE

1462-84-6

2,3,6-Collidine

Pyridine, 2,3,6-trimethyl-

0G31C4W0MI

NSC-76593

UNII-0G31C4W0MI

EINECS 215-970-2

NSC 76593

Pyridine,3,6-trimethyl-

2,3,6-trimethyl-pyridine

UNII-S396YQ63EL

SCHEMBL82917

S396YQ63EL

DTXSID5051731

NSC76593

AKOS006274053

MCULE-7286582732

DB-042833

NS00024781

AO-801/41077394

Q27236734

2,3,5-Trimethylpyridine

695-98-7

2,3,5-COLLIDINE

Pyridine, 2,3,5-trimethyl-

2,3,5-Trimethyl pyridine

2,3,5-trimethyl-pyridine

MFCD00126840

33642OT638

EINECS 211-786-1

2,3,5-Collidine (2,3,5-Trimethylpyridine)

2,3,5-Trimethyl-pyridin

SCHEMBL7487

2,3,5-Collidine, 99%

DTXSID80219734

UNII-33642OT638

BCP26366

AKOS005258308

AC-6868

AM81285

CS-W011200

SB52291

AS-10876

DB-024217

A9201

NS00020874

T1722

EN300-97797

F11272

W-104616

Q27891716

4-HYDROXYPYRIDINE

626-64-2

pyridin-4-ol

4-Pyridinol

pyridin-4(1H)-one

108-96-3

4-Pyridone

4(1H)-Pyridinone

1H-pyridin-4-one

4-Pyridinone

4-Oxopyridine

4-Pyridol

gamma-Hydroxypyridine

gamma-Pyridone

4(1H)-Pyridone

.gamma.-Pyridone

.gamma.-Hydroxypyridine

DTXSID2052310

NSC5080

3P2MV07G53

NSC-5080

MFCD00006419

MFCD00040458

NSC-146174

4pyridone

3454-03-3

NSC-26021

NSC 5080

EINECS 210-958-3

BRN 0105800

UNII-3P2MV07G53

AI3-61970

4-hydroxypridine

p-Hydroxypyridine

Pyridin-4-one

4-hydroxy-pyridine

CQG

EINECS 203-633-2

NSC 146174

4-HYDROXYPYRIDINE (4-PYRIDINOL)

4-Hydroxypyridine, 95%

1,4-dihydropyridin-4-one

1,4-Dihydro-4-pyridinone

HYDROXYPYRIDINE, 4-

5-21-07-00152 (Beilstein Handbook Reference)

MLS004491722

4-hydroxypyridine, AldrichCPR

CHEMBL237459

SR-1C7

DTXCID9030882

CHEBI:87614

CHEBI:133125

BCP08909

STR01041

EINECS 222-380-9

Tox21_303817

BBL022970

c1201

NSC146174

STL363251

AKOS000121024

AKOS022377006

AC-2927

BS-3730

CS-W007690

HY-W007690

MCULE-8174139341

PB17041

SB52275

NCGC00357095-01

CAS-626-64-2

SMR003288679

SY003367

SY112252

DB-014976

DB-040853

A8662

AM20061387

CS-0166783

H0332

NS00022560

EN300-21574

D82355

AC-907/34116018

Q230024

W-104968

Butanoic acid,heptafluoro-,1,10-decanediyl ester(9ci)

A1E9A648-09AC-4FC9-A7AF-37534D102469

InChI=1/C5H5NO/c7-5-1-3-6-4-2-5/h1-4H,(H,6,7

3,5-DIMETHYLPYRIDINE

3,5-Lutidine

591-22-0

Pyridine, 3,5-dimethyl-

3,5-dimethyl-pyridine

6Q4YPZ045V

DTXSID5052254

MFCD00006404

NSC-60736

3,5-Lutdcine

3,5-dimethyl pyridine

UNII-6Q4YPZ045V

3,5 lutidine

NSC60736

EINECS 209-708-6

NSC 60736

EC 209-708-6

NCIOpen2_004681

SCHEMBL24225

3,5-Lutidine, >=98%

DTXCID0030825

3,5-Lutidine, analytical standard

BCP26361

Tox21_303943

STL280373

AKOS015891741

AM81286

MCULE-2931433741

NCGC00357179-01

AC-15531

CAS-591-22-0

DB-024152

L0068

NS00006031

EN300-82871

A832172

W-105339

Q23636070

F0001-1549

InChI=1/C7H9N/c1-6-3-7(2)5-8-4-6/h3-5H,1-2H

2,5-DIMETHYLPYRIDINE

2,5-Lutidine

589-93-5

Pyridine, 2,5-dimethyl-

2,5-dimethyl-pyridine

6L09RM76RH

NSC-5089

MFCD00006343

NSC 5089

EINECS 209-666-9

UNII-6L09RM76RH

NSC5089

5-methyl-2-methylpyridine

2,5-Lutidine, 95%

SCHEMBL31030

WLN: T6NJ B1 E1

DTXSID0060436

AKOS005258301

MCULE-9408937494

LS-13280

DB-053300

L0065

NS00022441

EN300-61695

I10249

J-507375

Q23636061

InChI=1/C7H9N/c1-6-3-4-7(2)8-5-6/h3-5H,1-2H

4,4'-Bipyridine

553-26-4

4,4'-DIPYRIDYL

4,4'-Bipyridyl

4-(4-Pyridyl)pyridine

4,4'-Dipyridine

4,4-Bipyridyl

4-pyridin-4-ylpyridine

4,4-Dipyridyl

gamma,gamma'-Bipyridyl

gamma,gamma'-Dipyridyl

4,4'-Dipyridyl hydrate

4,4-Bipyridine

.gamma.,.gamma.'-Bipyridyl

4,4-Bipyridin

NSC 404423

MFCD00006416

4-(pyridin-4-yl)pyridine

4,4'-bpy

X4O2OD61CB

.gamma.,.gamma.'-Dipyridyl

MLS000702205

DTXSID2027200

CHEBI:30985

NSC-404423

SMR000224611

37275-48-2

DTXCID107200

CAS-553-26-4

CCRIS 2363

4, 4'-Dipyridine

EINECS 209-036-3

UNII-X4O2OD61CB

BRN 0113176

AI3-00138

4,4' bipyridine

4,4'-di-pyridine

4-pyridin-4-ylpyridin

Bipyridine, 4,4'-

Maybridge3_006249

Opera_ID_1063

Dopamine Nmethyltransferase

4,4\'-Dipyridyl hydrate

SCHEMBL9728

4,4'-Dipyridyl, 98%

CBDivE_014486

5-23-08-00028 (Beilstein Handbook Reference)

Methyltransferase, dopamine N-

CHEMBL1374568

HMS1448M01

HMS2529I24

4,4'-bipyridine;4,4'-Dipyridyl

Tox21_201668

Tox21_300577

CCG-44317

NSC404423

STK868236

AKOS000528630

AC-7555

AM81315

CS-W018005

MCULE-9316653771

IDI1_017636

NCGC00163975-01

NCGC00163975-02

NCGC00163975-03

NCGC00254394-01

NCGC00259217-01

AS-11016

.GAMMA.,.GAMMA.'-DIPYRIDYL [MI]

DB-016043

A8015

B0469

EU-0068109

NS00001571

EN300-18088

D-7300

D-7304

Q229839

SR-01000400279

J-004914

SR-01000400279-1

SR-01000400279-2

Z57160158

F0900-3898

4,4'-Bipyridyl, anhydrous, PESTANAL(R), analytical standard

InChI=1/C10H8N2/c1-5-11-6-2-9(1)10-3-7-12-8-4-10/h1-8

3-METHYLPYRIDINE

3-Picoline

108-99-6

beta-Picoline

Pyridine, 3-methyl-

m-Picoline

m-Methylpyridine

B-Picoline

beta-Methylpyridine

3-Methyl pyridine

.beta.-Picoline

NSC 18251

3-Mepy

.beta.-Methylpyridine

CCRIS 1722

HSDB 4254

EINECS 203-636-9

UNII-B083J4KF7F

B083J4KF7F

DTXSID9021897

CHEBI:39922

AI3-24110

3-Methylpyridine-d7

NSC-18251

METHYLPYRIDINE, 3-

DTXCID201897

EC 203-636-9

meta-Methylpyridine

CAS-108-99-6

3-methypyridine

5-methylpyridine

3-methyl pyridin

pyridine, 3-methyl

MFCD00006402

3-Methylpyridine, 99%

beta-PICOLINE (IARC)

NCIOpen2_004641

MLS001065607

CHEMBL15722

.BETA.-PICOLINE [MI]

3-Picoline, analytical standard

.BETA.-PICOLINE [IARC]

3-METHYLPYRIDINE [HSDB]

3-Methylpyridine, >=99.5%

HMS3039L05

BCP22897

BCP26368

NSC18251

Tox21_201966

Tox21_303001

STL282747

AKOS000119862

AM81278

DB01996

MCULE-7651055603

NCGC00091447-01

NCGC00091447-02

NCGC00256559-01

NCGC00259515-01

PICOLINE (FLAMMABLE LIQUID LABEL)

PD008234

SMR000568465

99.5%(GC)

DB-016018

m-Picoline [UN2313] [Flammable liquid]

NS00002252

P0416

EN300-19742

Q2697560

W-108710

F0001-0187

Z104475010

InChI=1/C6H7N/c1-6-3-2-4-7-5-6/h2-5H,1H

5HS

The Henry's Law constant for 3-methylpyridine is 7.73X10-6 atm-cu m/mole(1). This Henry's Law constant indicates that 3-methylpyridine is expected to volatilize from water surfaces(2). Based on this Henry's Law constant, the volatilization half-life from a model river (1 m deep, flowing 1 m/sec, wind velocity of 3 m/sec)(2) is estimated as 5 days(SRC). The volatilization half-life from a model lake (1 m deep, flowing 0.05 m/sec, wind velocity of 0.5 m/sec)(2) is estimated as 37 days(SRC). 3-Methylpyridine's Henry's Law constant indicates that volatilization from moist soil surfaces may occur(SRC). 3-Methylpyridine is expected to volatilize from dry soil surfaces(SRC) based upon a vapor pressure of 6.05 mm Hg at 25 °C(3). 3-Methylpyridine is a weak base with a pKa of 5.63(4), which indicates this compound will partially exist in the protonated form in acidic conditions, and no volatilization from water or moist soil will occur for the cation(SRC).

Using a structure estimation method based on molecular connectivity indices(1), the Koc of 3-methylpyridine can be estimated to be 115(SRC). According to a classification scheme(2), this estimated Koc value suggests that 3-methylpyridine is expected to have high mobility in soil. The pKa of 3-methylpyridine is 5.63(3), indicating that this compound will exist partially in cation form in the environment and cations generally adsorb more strongly to soils containing organic carbon and clay than their neutral counterparts(4). Soil studies with 2-methylpyridine(5), a compound expected to have similar sorption properties as 3-methylpryidine(SRC), demonstrated that Koc can vary with pH with lowest adsorption occurring in the non-ionized form(5).

3-Fluoropyridine

372-47-4

Pyridine, 3-fluoro-

AP9KGY2VWZ

NSC-5078

MFCD00006374

CCRIS 1717

NSC 5078

EINECS 206-755-4

3-fluropyridine

3-fluoro-pyridine

3-Fluoro-pyridinium

UNII-AP9KGY2VWZ

3-Fluoropyridine, 99%

CHEMBL1162361

DTXSID10190688

NSC5078

BCP23075

AKOS005145578

AC-7017

CS-W011338

SB52271

BP-11394

DB-025062

AM20051123

F0207

NS00041742

EN300-21360

Q-103374

F0001-1072

InChI=1/C5H4FN/c6-5-2-1-3-7-4-5/h1-4

89406-85-9

SCHEMBL10725037

DTXSID501272041

2,4,6-trimethyl-3-isopropylpyridine

DB-289218

2,4,6-Trimethyl-3-(1-methylethyl)pyridine

Pyridine, 2,4,6-trimethyl-3-(1-methylethyl)-

4-Methyl-2-phenyl-1H-pyrrolo[2,3-b]pyridine

23688-50-8

1H-Pyrrolo[2,3-b]pyridine, 4-methyl-2-phenyl-

SCHEMBL1778024

PPRZWBLCPANUPB-UHFFFAOYSA-N

DTXSID801264045

4-Methyl-2-phenyl-1H-pyrrolo[2,3-b]pyridine #

5308-63-4

2-Acetyl-5-methylpyridine

1-(5-METHYLPYRIDIN-2-YL)ETHANONE

1-(5-methyl-pyridin-2-yl)-ethanone

1-(5-METHYLPYRIDIN-2-YL)ETHAN-1-ONE

MFCD06658292

1-(5-methyl-2-pyridyl)ethanone

ETHANONE, 1-(5-METHYL-2-PYRIDINYL)-

2-Acetyl-5-picoline

1-(5-METHYL-PYRIDIN-2-YL)ETHANONE

2-acetyl-5-methyl-pyridine

SCHEMBL827893

DTXSID90517258

CHEBI:179147

AMY28417

BCP21065

1-(5-Methylpyridin-2-yl)-ethanone

AB1019

1-(5-methyl-2-pyridyl)-1-ethanone

AKOS006295634

AB25779

Methyl 5-methyl-2-pyridyl ketone, 8CI

1-(5-Methyl-2-pyridinyl)ethanone, 9CI

DS-16613

SY005233

CS-0005383

A15627

EN300-306647

J-400233

nicotinic acid

niacin

59-67-6

Pyridine-3-carboxylic acid

3-pyridinecarboxylic acid

vitamin B3

3-Carboxypyridine

wampocap

Niaspan

Acidum nicotinicum

nicolar

Apelagrin

Pellagrin

Akotin

Daskil

Efacin

Pelonin

Linic

nicamin

nicobid

nicocap

Enduracin

Nicodelmine

Niconacid

Nicotinipca

Pellagramin

Direktan

Nicacid

Nicangin

Peviton

Bionic

Diacin

Nicyl

Nyclin

Niac

Vitaplex N

Davitamon PP

Nico-Span

Tega-Span

Nicocidin

Nicocrisina

Niconazid

Nicoside

Nicotamin

Nicotene

Nicovasan

Nicovasen

Nipellen

SK-Niacin

Naotin

Niacor

Nicodon

Niconat

Nicosan 3

Nicosyl

Nicotil

Tinic

3-Carboxylpyridine

Nicotine acid

nicotinate

Slo-niacin

NICO

3-Picolinic acid

Nicotinsaure

Nico-400

Acide nicotinique

Pyridine-beta-carboxylic acid

Nicagin

anti-Pellagra vitamin

Caswell No. 598

PP Factor

Kyselina nikotinova

P.P. factor

Pellagra preventive factor

S115

Nicotinsaure [German]

Acido nicotinico

3-Pyridylcarboxylic acid

m-Pyridinecarboxylic acid

Kyselina nikotinova [Czech]

MFCD00006391

niacine

CCRIS 1902

Pyridine-carboxylique-3

EPA Pesticide Chemical Code 056701

Acide nicotinique [INN-French]

Acido nicotinico [INN-Spanish]

Acidum nicotinicum [INN-Latin]

HSDB 3134

Pyridine-carboxylique-3 [French]

AI3-18994

Pyridinecarboxylic acid, 3-

Niacin [USP]

SR 4390

BRN 0109591

Niacin extended release

Nicotinic acid [INN]

NAH

CHEMBL573

beta-pyridinecarboxylic acid

NSC-169454

MLS000069603

Pyridine-.beta.-carboxylic acid

DTXSID1020932

CHEBI:15940

Niacin (USP)

2679MF687A

P.P. factor-pellagra preventive factor

CAS-59-67-6

NCGC00016268-02

SMR000059024

[5, 6-3H]-niacin

DTXCID10932

Niacin [USAN]

Nicotinicacid

NIO

Niacin (nicotinic acid)

SR-01000722017

EINECS 200-441-0

NIASPAN TITRATION STARTER PACK

NSC 169454

pellagra

Nikotinsaeure

Ncotnc acd

UNII-2679MF687A

preventative factor

antipellagra vitamin

Niaspan (TN)

3-Pyridylcarboxylate

3PyrCOOH

[3H]nicotinic acid

Niacor (TN)

Nicotinic Acid,(S)

[3H]-Nicotinic acid

Spectrum_001063

Nicotinic acid, Ph Eur

NIACIN [VANDF]

NIACIN [HSDB]

NIACIN [INCI]

Nicotinic acid (Niacin)

5-pyridinecarboxylic acid

NIACIN [FCC]

NIACIN [USP-RS]

Opera_ID_1346

Prestwick0_000881

Prestwick1_000881

Prestwick2_000881

Prestwick3_000881

Pyridine-3-carbonic acid

Spectrum2_000006

Spectrum3_000515

Spectrum4_000965

Spectrum5_001287

VITAMIN B-3

3-Pyridyl carboxylic acid

Nicotinic acid-d3(major)

WLN: T6NJ CVQ

3-pyridine carboxylic acid

bmse000104

Nicotinic acid, >=98%

Nicotinic acid, USP grade

EC 200-441-0

SCHEMBL1433

NICOTINIC ACID [MI]

Oprea1_514398

VITAMIN B3 [VANDF]

BSPBio_000662

BSPBio_002069

KBioGR_001309

KBioSS_001543

NIACIN [ORANGE BOOK]

NICOTINIC ACID [JAN]

5-22-02-00057 (Beilstein Handbook Reference)

Nicotinic acid (Vitamin B3)

BIDD:GT0644

DivK1c_000695

Nicotinic acid (JP17/INN)

SIMCOR COMPONENT NIACIN

SPECTRUM1500430

.beta.-Pyridinecarboxylic acid

SPBio_000011

SPBio_002881

ADVICOR COMPONENT NIACIN

NIACIN [USP MONOGRAPH]

NICOTINIC ACID [VANDF]

BPBio1_000730

GTPL1588

GTPL1594

NICOTINIC ACID [MART.]

NICOTINIC ACID [WHO-DD]

NICOTINIC ACID [WHO-IP]

BDBM23515

HMS502C17

KBio1_000695

KBio2_001543

KBio2_004111

KBio2_006679

KBio3_001569

ABT-919

NIACIN COMPONENT OF SIMCOR

NICOTINIC ACID [EMA EPAR]

NINDS_000695

HMS1570B04

HMS1920P17

HMS2091H22

HMS2097B04

HMS2236A05

HMS3259K21

HMS3371E07

HMS3655K08

HMS3714B04

NIACIN COMPONENT OF ADVICOR

Pharmakon1600-01500430

Nicotinic acid, analytical standard

BCP16301

HY-B0143

STR00112

Tox21_110337

Tox21_201420

Tox21_302904

AC8691

BBL037343

CCG-38340

NICOTINIC ACID [EP IMPURITY]

Nicotinic acid, for synthesis, 99%

NSC169454

NSC757241

s1744

STK301803

NICOTINIC ACID [EP MONOGRAPH]

AKOS000118980

Nicotinic acid, >=99.5% (HPLC)

Tox21_110337_1

AM81316

CS-1946

DB00627

MCULE-3788394698

NC00524

Nicotinic Acid 1.0 mg/ml in Methanol

NSC-757241

PS-4255

SDCCGMLS-0066610.P001

IDI1_000695

NCGC00016268-01

NCGC00016268-03

NCGC00016268-04

NCGC00016268-05

NCGC00016268-08

NCGC00016268-09

NCGC00016268-13

NCGC00094734-01

NCGC00094734-02

NCGC00256537-01

NCGC00258971-01

AC-22484

ACIDUM NICOTINICUM [WHO-IP LATIN]

BP-21419

NCI60_001041

Nicotinic acid, NIST(R) SRM(R) 148

Nicotinic acid, plant cell culture tested

SY011111

SBI-0051456.P003

DB-007765

Nicotinic Acid [Matrix for MALDI-TOF/MS]

AB00052050

N0082

N1103

Nicotinic acid 10 microg/mL in Acetonitrile

Nicotinic acid, purum, >=99.0% (HPLC)

NS00003500

SW197229-3

EN300-16693

C00253

D00049

Nicotinic acid, SAJ special grade, >=99.5%

AB00052050-13

AB00052050_14

AB00052050_15

Nicotinic acid, meets USP testing specifications

AC-907/25014105

L001199

METHYL NICOTINATE IMPURITY A [EP IMPURITY]

Nicotinic acid, Vetec(TM) reagent grade, >=98%

Q134658

J-523605

SR-01000722017-2

SR-01000722017-3

SR-01000722017-4

Z56755709

3DDB011E-F3A6-45B6-A2D2-77B2A6E8936E

F2191-0082

Niacin, United States Pharmacopeia (USP) Reference Standard

Nicotinic acid, certified reference material, TraceCERT(R)

Nicotinic acid, European Pharmacopoeia (EP) Reference Standard

Nicotinic acid, matrix substance for MALDI-MS, >=99.5% (HPLC)

InChI=1/C6H5NO2/c8-6(9)5-2-1-3-7-4-5/h1-4H,(H,8,9

Nicotinic acid, for inorganic trace analysis, >=99.999% (metals basis)

Niacin (Nicotinic Acid), Pharmaceutical Secondary Standard; Certified Reference Material

101113-41-1

Nicotinic acid, BioReagent, suitable for cell culture, suitable for insect cell culture, suitable for plant cell culture, >=98%

A pKa of 4.75(1) indicates nicotinic acid will exist almost entirely in the anion form at pH values of 5 to 9 and, therefore, volatilization from water surfaces is not expected to be an important fate process(SRC). Nicotinic acid is not expected to volatilize from dry soil surfaces(SRC) based upon a an estimated vapor pressure of 9.4X10-5 mm Hg(SRC), determined from a fragment constant method(2).

Using a structure estimation method based on molecular connectivity indices(1), the Koc of nicotinic acid can be estimated to be 8(SRC). According to a classification scheme(2), this estimated Koc value suggests that nicotinic acid is expected to have very high mobility in soil. The pKa of nicotinic acid is 4.75(3), indicating that this compound will exist almost entirely in the anion form in the environment and anions generally do not adsorb more strongly to soils containing organic carbon and clay than their neutral counterparts(4).

2-ACETYLPYRIDINE

1122-62-9

1-(pyridin-2-yl)ethanone

1-pyridin-2-ylethanone

Methyl 2-pyridyl ketone

Acetylpyridine

Ketone, methyl 2-pyridyl

2-Pyridyl methyl ketone

2-Acetopyridine

1-Pyridin-2-yl-ethanone

Ethanone, 1-(2-pyridinyl)-

1-(2-Pyridinyl)ethanone

Acetyl pyridine

1-(Pyridin-2-Yl)Ethan-1-One

MFCD00006303

FEMA No. 3251

FEMA 3251

1-(2-Pyridyl)-1-ethanone

CHEMBL11945

DTXSID7024409

629O10UI3L

2-acetyl pyridine

NSC-15043

30440-88-1

Ethanone, 1-(pyridinyl)-

DTXCID804409

2-Acetylpyridine (natural)

CAS-1122-62-9

CCRIS 7784

1-(2-PYRIDYL)ETHANONE

EINECS 214-355-6

NSC 15043

UNII-AQQ7807JD8

UNII-629O10UI3L

AI3-52210

2-acetyipyridine

2-acetyl-pyridine

1-Pyridin-2-ylmethanone

1-(pyridine-2-yl)ethanone

SCHEMBL55127

1-(2-Pyridinyl)ethanone #

2-Acetylpyridine, >=99%

MLS002152864

AQQ7807JD8

2-ACETYLPYRIDINE [FHFI]

1-(2-Pyridinyl)ethanone, 9CI

2-Acetylpyridine, >=99%, FG

CHEBI:193619

HMS2268O15

1-(2-PYRIDINYL)-ETHANONE

2-ACETYLPYRIDINE [USP-RS]

NSC15043

Tox21_201499

Tox21_303104

BDBM50026891

STL145899

2-Acetylpyridine, analytical standard

AKOS000119795

AB00686

CS-W008602

MCULE-7714885820

NCGC00091706-01

NCGC00091706-02

NCGC00256952-01

NCGC00259050-01

AS-14447

SMR000112288

DB-015932

A0111

AM20061676

NS00018664

EN300-19607

P19605

A802529

doi:10.14272/AJKVQEKCUACUMD-UHFFFAOYSA-N.1

Q-100067

Q4596853

F0001-0271

Z104474432

InChI=1/C7H7NO/c1-6(9)7-4-2-3-5-8-7/h2-5H,1H

2-Acetylpyridine, United States Pharmacopeia (USP) Reference Standard

PYRIDINE

Azabenzene

110-86-1

Azine

Pyridin

Piridina

Pirydyna

Pyridin [German]

Pirydyna [Polish]

Piridina [Italian]

RCRA waste number U196

Caswell No. 717

NCI-C55301

FEMA No. 2966

FEMA Number 2966

CCRIS 2926

HSDB 118

CHEBI:16227

CP 32

EINECS 203-809-9

NSC 406123

pyridine-ring

pyridine-

UNII-NH9L3PP67S

NH9L3PP67S

EPA Pesticide Chemical Code 069202

DTXSID9021924

AI3-01240

NSC-141574

NSC-406123

PYRIDINE (15N)

DTXCID101924

EC 203-809-9

MFCD00011732

PYRIDINE (IARC)

PYRIDINE [IARC]

Pyridine [UN1282] [Flammable liquid]

PYRIDINE (USP-RS)

PYRIDINE [USP-RS]

Pyridine, ACS reagent, >=99.0%

Pyridine, ReagentPlus(R), >=99%

UN1282

CEFTAZIDIME IMPURITY F (EP IMPURITY)

CEFTAZIDIME IMPURITY F [EP IMPURITY]

RCRA waste no. U196

CEFTAZIDIME PENTAHYDRATE IMPURITY F (EP IMPURITY)

CEFTAZIDIME PENTAHYDRATE IMPURITY F [EP IMPURITY]

hydropyridine

N-pyridine

pyridine fraction

3-pyridinyl

[pyridine]

2-pyridine

4-pyridine

Pyridine II

Pyridine III

3-Pyridine

Pyridine anhydrous

Azabenzene; Azine

0PY

Pyridine, anhydrous

Pyridine, 99%

Pyridine, ACS reagent

Pyridine, >=99%

Pyridine, HPLC Grade

PYRIDINE [FHFI]

PYRIDINE [HSDB]

PYRIDINE [MI]

bmse000432

Epitope ID:140099

WLN: T6NJ

Pyridine, p.a., 99%

NCIOpen2_002809

NCIOpen2_007786

NCIOpen2_007866

NCIOpen2_007986

NCIOpen2_007999

Pesticide Code: 069202

Pyridine, LR, >=99%

Pyridine, analytical standard

Pyridine, anhydrous, 99.8%

CHEMBL266158

Pyridine, AR, >=99.5%

Pyridine, >=99.5% (GC)

DTXSID101318102

BCP23599

Pyridine, for HPLC, >=99.9%

Tox21_200960

BDBM50176909

NSC141574

NSC406123

Pyridine, anhydrous Water 30ppm Max

STL264195

AKOS000120998

MCULE-4028120692

Pyridine, biotech. grade, >=99.9%

UN 1282

NCGC00091476-01

NCGC00091476-02

NCGC00258513-01

Pyridine, SAJ first grade, >=99.0%

BP-13452

CAS-110-86-1

NCI60_006101

Pyridine, JIS special grade, >=99.5%

Pyridine, p.a., ACS reagent, 99.0%

Pyridine, purification grade, >=99.75%

DB-220141

Pyridine, spectrophotometric grade, >=99%

NS00010113

Q0034

EN300-17264

C00747

A802257

Q210385

J-002482

InChI=1/C5H5N/c1-2-4-6-5-3-1/h1-5

F0001-0227

Pyridine, puriss. p.a., ACS reagent, >=99.8% (GC)

Pyridine, suitable for hydroxyl value determination, >=99.5%

Pyridine; Azabenzene; Azine; CP 32; NSC 141574; NSC 406123

Pyridine, Pharmaceutical Secondary Standard; Certified Reference Material

Pyridine, puriss. p.a., ACS reagent, reag. Ph. Eur., >=99.5% (GC)

0.25 M Hyacinth BMT solution BMT in anhydrous Acetonitrile, NC-0102 emp Biotech GmbH

Pyridine, puriss., absolute, over molecular sieve (H2O <=0.005%), >=99.8% (GC)

Pyridine, puriss., Reag. Ph. Eur., dried, >=99.5% (GC), <=0.0075% water

Solvent Mix Pyridine in ACN (V / V = 60 : 40) NC-0612, GL45 thread emp Biotech GmbH

29761-81-7

Pyridine for oligo synthesis (Water content < 30 ppm) NC-0604 2.5 L GL45 thread emp Biotech GmbH

The Henry's Law constant for pyridine is 1.1X10-5 atm-cu m/mole(1). This Henry's Law constant indicates that pyridine is expected to volatilize from water surfaces(2). Based on this Henry's Law constant, the volatilization half-life from a model river (1 m deep, flowing 1 m/sec, wind velocity of 3 m/sec)(2) is estimated as 3 days(SRC). The volatilization half- life from a model lake (1 m deep, flowing 0.05 m/sec, wind velocity of 0.5 m/sec)(2) is estimated as 25 days(SRC). Pyridine's Henry's Law constant(1) indicates that volatilization from moist soil surfaces may occur(SRC). Pyridine is a weak base with a pKa of 5.23(3), which indicates this compound will partially exist in the protonated form in acidic conditions, and no volatilization from water or moist soil will occur for the cation(SRC). The potential for volatilization of pyridine from dry soil surfaces may exist(SRC) based upon a vapor pressure of 20.8 mm Hg(4).
Literature: (1) Hawthorne SB et al; Environ Sci Technol 19: 922-927 (1985) (2) Lyman WJ et al; Handbook of Chemical Property Estimation Methods. Washington, DC: Amer Chem Soc pp. 15-1 to 15-29 (1990) (3) Bintein S, Devillers J; Chemosphere 28: 1171-88 (1994) (4) Daubert TE, Danner RP; Physical and Thermodynamic Properties of Pure Chemicals Data Compilation Washington, DC: Taylor and Francis (1989)

The Koc of pyridine is estimated as 50(SRC), using a measured log Kow of 0.65(1) and a regression-derived equation(2). According to a classification scheme(3), this estimated Koc value suggests that pyridine is expected to have high mobility in soil. The pKa of pyridine is 5.23(4), which indicates that pyridine will partially exist in the protonated form under acidic conditions and cations adsorb more strongly to soil surfaces than neutral molecules(SRC). The adsorption of pyridine to a basic subsoil (pH 8.15, 0.58% organic carbon) is negligible, while in an acidic subsoil (pH 4.85, O.24% organic carbon), the Freundlich adsorption constant was measured to be 5.78 and the slope 0.679(5). This suggests a cationic adsorption mechanism as pyridine is predominantly in its protonated form. Pyridine adsorbs to colloidal particles of sodium montmorillonite and kaolinite, a process which is attributed to cation exchange and is a function of pH(5). Adsorption is at a minimum at pH 1 and 11 and reaches a maximum at pH 4 for the montmorillonite and pH 5.5 for the kaolinite where the adsorption constants are 60 and 10, respectively(6).
Literature: (1) Hansch C et al; Exploring QSAR. Hydrophobic, Electronic, and Steric Constants. ACS Prof Ref Book. Heller SR, consult. ed., Washington, DC: Amer Chem Soc p. 12 (1995) (2) Lyman WJ et al; Handbook of Chemical Property Estimation Methods. Washington, DC: Amer Chem Soc pp. 4-9 (1990) (3) Swann RL et al; Res Rev 85: 17-28 (1983) (4) Bintein S, Devillers J; Chemosphere 28: 1171-88 (1994) (5) Felice LJ et al; Quinoline Partitioning In Substance Materials Adsorption, Desorption, and Solute Competition PNL-SA-11728 Battelle Pacific NW Labs pp. 19 (1984) (6) Baker RA, Lu MD; Water Res 5: 839-48 (1971)