Pentadeuteropyridine

Azabenzene

JUJWROOIHBZHMG-UHFFFAOYSA-N

Piridina

Pirydyna

PYRIDINE

pyridine fraction

Pyridin

Azine

pyridine-ring

Pyridine, analytical standard

pyridine-

Pyridine, anhydrous

0PY

AC1Q2ARA

2-pyridinyl

4-pyridinyl

PYRIDINE, ACS

Pyridine, ACS reagent

AC1L1AM2

AC1Q2AR9

Pyridine, HPLC Grade

NH9L3PP67S

Piridina [Italian]

Pirydyna [Polish]

TRANSGENIC LECM (PYRIDINE)

Pyridin [German]

PYRIDINE- D5

Pyridine, pharmaceutical secondary standard; traceable to USP

CP 32

LS-13

Pyridine, >=99%

Pyridine, spectrophotometric grade, >=99%

UN1282

UNII-NH9L3PP67S

WLN: T6NJ

CTK0H7158

HMDB00926

HSDB 118

P0549

Pyridine, 99%

Q0034

Q0045

X4374

CHEMBL266158

RP17908

bmse000432

C00747

CCRIS 2926

LTBB002420

RCRA waste number U196

ZINC895354

DNC004080

DTXSID9021924

FEMA Number 2966

HE027241

HE095340

HE100352

HE104240

HE295400

HE313916

HE420381

NSC141574

NSC406123

STL264195

UN 1282

ZB015028

300181X

A802257

ACMC-20a483

CHEBI:16227

DSSTox_CID_1924

NCI-C55301

POLY(3 5-PYRIDINEDIYL)

PYRIDINE (15N)

AB1007260

AJ-24181

AN-22628

ANW-41400

ANW-56401

BP-13452

CJ-04471

DSSTox_GSID_21924

Caswell No. 717

DSSTox_RID_76405

MFCD00011732

Pyridine, LR, >=99%

ZINC00895354

AI3-01240

NCIOpen2_002809

NCIOpen2_007786

NCIOpen2_007866

NCIOpen2_007986

NCIOpen2_007999

NSC 406123

NSC-141574

NSC-406123

RTR-002198

TR-002198

AKOS000120998

EPA Pesticide Chemical Code 069202

Epitope ID:140099

I02-1797

J-002482

RCRA waste no. U196

FEMA No. 2966

FT-0632826

FT-0646882

FT-0654216

FT-0658212

FT-0658683

Pyridine, anhydrous, 99.8%

Pyridine, ReagentPlus(R), >=99%

Pyridine, purification grade, >=99.75%

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

NCI60_006101

Tox21_200960

110-86-1

F0001-0227

Pyridine, ACS reagent, >=99.0%

Pyridine, AR, >=99.5%

Pyridine, 99% 500ml

Pyridine, for HPLC, >=99.9%

Pyridine, JIS special grade, >=99.5%

6999-00-4

7291-22-7

MCULE-4028120692

NCGC00091476-01

NCGC00091476-02

NCGC00258513-01

Pyridine, SAJ first grade, >=99.0%

CAS-110-86-1

EINECS 203-809-9

Pyridine, biotech. grade, >=99.9%

Pyridine, p.a., 99%

45410-39-7

62301-32-0

82005-06-9

85404-19-9

85404-20-2

Pyridine [UN1282] [Flammable liquid]

Pyridine, >=99.5% (GC)

152758-95-7

163392-20-9

628-13-7 (hydrochloride)

733733-47-6

857961-06-9

1175-EP0930075A1

1175-EP1441224A2

1175-EP2269977A2

1175-EP2269978A2

1175-EP2269985A2

1175-EP2269986A1

1175-EP2269989A1

1175-EP2269990A1

1175-EP2269991A2

1175-EP2269992A1

1175-EP2269993A1

1175-EP2270001A1

1175-EP2270002A1

1175-EP2270003A1

1175-EP2270004A1

1175-EP2270006A1

1175-EP2270008A1

1175-EP2270010A1

1175-EP2270011A1

1175-EP2270014A1

1175-EP2270015A1

1175-EP2270017A1

1175-EP2270018A1

1175-EP2270113A1

1175-EP2270114A1

1175-EP2270505A1

1175-EP2272509A1

1175-EP2272510A1

1175-EP2272516A2

1175-EP2272517A1

1175-EP2272537A2

1175-EP2272813A2

1175-EP2272817A1

1175-EP2272822A1

1175-EP2272825A2

1175-EP2272826A1

1175-EP2272827A1

1175-EP2272828A1

1175-EP2272832A1

1175-EP2272834A1

1175-EP2272835A1

1175-EP2272837A1

1175-EP2272838A1

1175-EP2272839A1

1175-EP2272840A1

1175-EP2272841A1

1175-EP2272844A1

1175-EP2272845A2

1175-EP2272849A1

1175-EP2272935A1

1175-EP2272972A1

1175-EP2272973A1

1175-EP2274983A1

1175-EP2275105A1

1175-EP2275395A2

1175-EP2275398A1

1175-EP2275401A1

1175-EP2275404A1

1175-EP2275409A1

1175-EP2275410A1

1175-EP2275411A2

1175-EP2275412A1

1175-EP2275414A1

1175-EP2275418A1

1175-EP2275420A1

1175-EP2275425A1

1175-EP2277848A1

1175-EP2277858A1

1175-EP2277861A1

1175-EP2277865A1

1175-EP2277867A2

1175-EP2277872A1

1175-EP2277875A2

1175-EP2277877A1

1175-EP2277878A1

1175-EP2277880A1

1175-EP2277881A1

1175-EP2279750A1

1175-EP2280000A1

1175-EP2280001A1

1175-EP2280002A1

1175-EP2280003A2

1175-EP2280004A1

1175-EP2280005A1

1175-EP2280007A1

1175-EP2280008A2

1175-EP2280009A1

1175-EP2280011A1

1175-EP2280012A2

1175-EP2280020A1

1175-EP2280021A1

1175-EP2280948A1

1175-EP2280957A1

1175-EP2281563A1

1175-EP2281810A1

1175-EP2281815A1

1175-EP2281817A1

1175-EP2281818A1

1175-EP2281819A1

1175-EP2281820A2

1175-EP2281821A1

1175-EP2281822A1

1175-EP2281823A2

1175-EP2281824A1

1175-EP2284149A1

1175-EP2284150A2

1175-EP2284151A2

1175-EP2284152A2

1175-EP2284153A2

1175-EP2284155A2

1175-EP2284156A2

1175-EP2284157A1

1175-EP2284159A1

1175-EP2284160A1

1175-EP2284164A2

1175-EP2284169A1

1175-EP2284171A1

1175-EP2284174A1

1175-EP2284920A1

1175-EP2286811A1

1175-EP2286812A1

1175-EP2287140A2

1175-EP2287147A2

1175-EP2287148A2

1175-EP2287150A2

1175-EP2287152A2

1175-EP2287153A1

1175-EP2287155A1

1175-EP2287157A1

1175-EP2287160A1

1175-EP2287161A1

1175-EP2287162A1

1175-EP2287165A2

1175-EP2287166A2

1175-EP2287167A1

1175-EP2289509A2

1175-EP2289868A1

1175-EP2289871A1

1175-EP2289877A1

1175-EP2289880A1

1175-EP2289884A1

1175-EP2289885A1

1175-EP2289887A2

1175-EP2289888A2

1175-EP2289891A2

1175-EP2289893A1

1175-EP2289894A2

1175-EP2289897A1

1175-EP2289965A1

1175-EP2292228A1

1175-EP2292586A2

1175-EP2292590A2

1175-EP2292592A1

1175-EP2292593A2

1175-EP2292595A1

1175-EP2292596A2

1175-EP2292597A1

1175-EP2292604A2

1175-EP2292606A1

1175-EP2292610A1

1175-EP2292611A1

1175-EP2292613A1

1175-EP2292615A1

1175-EP2292617A1

1175-EP2292618A1

1175-EP2292619A1

1175-EP2292620A2

1175-EP2292629A1

1175-EP2292630A1

1175-EP2295053A1

1175-EP2295402A2

1175-EP2295406A1

1175-EP2295408A1

1175-EP2295409A1

1175-EP2295410A1

1175-EP2295411A1

1175-EP2295412A1

1175-EP2295413A1

1175-EP2295414A1

1175-EP2295415A1

1175-EP2295416A2

1175-EP2295417A1

1175-EP2295418A1

1175-EP2295419A2

1175-EP2295425A1

1175-EP2295426A1

1175-EP2295427A1

1175-EP2295428A2

1175-EP2295429A1

1175-EP2295432A1

1175-EP2295433A2

1175-EP2295434A2

1175-EP2295437A1

1175-EP2295439A1

1175-EP2295441A2

1175-EP2295503A1

1175-EP2298312A1

1175-EP2298729A1

1175-EP2298731A1

1175-EP2298732A1

1175-EP2298734A2

1175-EP2298735A1

1175-EP2298739A1

1175-EP2298744A2

1175-EP2298746A1

1175-EP2298747A1

1175-EP2298748A2

1175-EP2298750A1

1175-EP2298754A1

1175-EP2298755A1

1175-EP2298756A1

1175-EP2298757A2

1175-EP2298758A1

1175-EP2298759A1

1175-EP2298761A1

1175-EP2298763A1

1175-EP2298764A1

1175-EP2298765A1

1175-EP2298766A1

1175-EP2298767A1

1175-EP2298768A1

1175-EP2298770A1

1175-EP2298772A1

1175-EP2298774A1

1175-EP2298775A1

1175-EP2298776A1

1175-EP2298778A1

1175-EP2298779A1

1175-EP2298780A1

1175-EP2298783A1

1175-EP2298828A1

1175-EP2299509A1

1175-EP2299510A1

1175-EP2299785A1

1175-EP2299817A1

1175-EP2299819A1

1175-EP2301534A1

1175-EP2301536A1

1175-EP2301538A1

1175-EP2301911A1

1175-EP2301912A2

1175-EP2301913A1

1175-EP2301914A1

1175-EP2301916A2

1175-EP2301918A1

1175-EP2301921A1

1175-EP2301922A1

1175-EP2301923A1

1175-EP2301926A1

1175-EP2301928A1

1175-EP2301929A1

1175-EP2301930A1

1175-EP2301932A1

1175-EP2301933A1

1175-EP2301934A1

1175-EP2301935A1

1175-EP2301936A1

1175-EP2301937A1

1175-EP2301939A1

1175-EP2301940A1

1175-EP2301983A1

1175-EP2302003A1

1175-EP2303843A2

1175-EP2303861A1

1175-EP2305219A1

1175-EP2305250A1

1175-EP2305627A1

1175-EP2305629A1

1175-EP2305633A1

1175-EP2305637A2

1175-EP2305640A2

1175-EP2305641A1

1175-EP2305643A1

1175-EP2305644A1

1175-EP2305647A1

1175-EP2305648A1

1175-EP2305649A1

1175-EP2305652A2

1175-EP2305654A1

1175-EP2305657A2

1175-EP2305658A1

1175-EP2305659A1

1175-EP2305660A1

1175-EP2305663A1

1175-EP2305664A1

1175-EP2305667A2

1175-EP2305668A1

1175-EP2305672A1

1175-EP2305674A1

1175-EP2305677A1

1175-EP2305679A1

1175-EP2305682A1

1175-EP2305684A1

1175-EP2305687A1

1175-EP2305688A1

1175-EP2305689A1

1175-EP2305695A2

1175-EP2305696A2

1175-EP2305697A2

1175-EP2305698A2

1175-EP2305808A1

1175-EP2305825A1

1175-EP2306788A1

1175-EP2306789A1

1175-EP2308510A1

1175-EP2308562A2

1175-EP2308812A2

1175-EP2308828A2

1175-EP2308832A1

1175-EP2308833A2

1175-EP2308838A1

1175-EP2308839A1

1175-EP2308840A1

1175-EP2308841A2

1175-EP2308847A1

1175-EP2308848A1

1175-EP2308849A1

1175-EP2308850A1

1175-EP2308851A1

1175-EP2308857A1

1175-EP2308858A1

1175-EP2308861A1

1175-EP2308862A1

1175-EP2308863A1

1175-EP2308866A1

1175-EP2308867A2

1175-EP2308868A1

1175-EP2308870A2

1175-EP2308871A1

1175-EP2308872A1

1175-EP2308873A1

1175-EP2308874A1

1175-EP2308877A1

1175-EP2308879A1

1175-EP2308880A1

1175-EP2308926A1

1175-EP2308960A1

1175-EP2309564A1

1175-EP2309584A1

1175-EP2311451A1

1175-EP2311455A1

1175-EP2311464A1

1175-EP2311796A1

1175-EP2311797A1

1175-EP2311798A1

1175-EP2311799A1

1175-EP2311801A1

1175-EP2311802A1

1175-EP2311803A1

1175-EP2311806A2

1175-EP2311807A1

1175-EP2311808A1

1175-EP2311809A1

1175-EP2311810A1

1175-EP2311811A1

1175-EP2311814A1

1175-EP2311815A1

1175-EP2311816A1

1175-EP2311817A1

1175-EP2311818A1

1175-EP2311821A1

1175-EP2311822A1

1175-EP2311823A1

1175-EP2311824A1

1175-EP2311825A1

1175-EP2311827A1

1175-EP2311829A1

1175-EP2311830A1

1175-EP2311831A1

1175-EP2311836A1

1175-EP2311837A1

1175-EP2311840A1

1175-EP2311842A2

1175-EP2311850A1

1175-EP2314295A1

1175-EP2314558A1

1175-EP2314574A1

1175-EP2314575A1

1175-EP2314576A1

1175-EP2314582A1

1175-EP2314583A1

1175-EP2314584A1

1175-EP2314585A1

1175-EP2314586A1

1175-EP2314587A1

1175-EP2314588A1

1175-EP2314590A1

1175-EP2314593A1

1175-EP2315303A1

1175-EP2315502A1

1175-EP2316450A1

1175-EP2316452A1

1175-EP2316457A1

1175-EP2316459A1

1175-EP2316470A2

1175-EP2316824A1

1175-EP2316825A1

1175-EP2316826A1

1175-EP2316827A1

1175-EP2316829A1

1175-EP2316831A1

1175-EP2316832A1

1175-EP2316833A1

1175-EP2316834A1

1175-EP2316835A1

1175-EP2316836A1

1175-EP2316905A1

1175-EP2316906A2

1175-EP2316974A1

1175-EP2371811A2

1175-EP2371812A1

1175-EP2371814A1

1175-EP2371831A1

1175-EP2372804A1

1175-EP2374454A1

1175-EP2374783A1

1175-EP2374788A1

1175-EP2374790A1

1175-EP2374792A1

1175-EP2377510A1

1175-EP2377813A1

1175-EP2377841A1

1175-EP2378585A1

1175-EP2380568A1

1175-EP2380867A1

1175-EP2380869A1

1175-EP2380870A1

1175-EP2380874A2

543-54-4 (monosulfate)

MolPort-000-872-057

Pyridine [UN1282] [Flammable liquid]

14835-EP2272517A1

14835-EP2272846A1

14835-EP2277868A1

14835-EP2277869A1

14835-EP2277870A1

14835-EP2280002A1

14835-EP2280011A1

14835-EP2280948A1

14835-EP2284166A1

14835-EP2287158A1

14835-EP2292592A1

14835-EP2292608A1

14835-EP2292625A1

14835-EP2295422A2

14835-EP2295436A1

14835-EP2298305A1

14835-EP2298749A1

14835-EP2298750A1

14835-EP2298769A1

14835-EP2298773A1

14835-EP2305657A2

14835-EP2308852A1

14835-EP2308866A1

14835-EP2308878A2

14835-EP2311806A2

14835-EP2316457A1

14835-EP2316830A2

14835-EP2371806A1

14835-EP2371807A1

18820-82-1 (hydrobromide)

32001-55-1 (hydrofluoride)

15598-34-2 (perchlorate)

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

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

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

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

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

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

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)