indole

1H-Indole

120-72-9

2,3-Benzopyrrole

Indol

1-Benzazole

Ketole

1-Azaindene

Benzopyrrole

2,3-Benzopyrole

Indole (natural)

Caswell No. 498B

1-Benzo(b)pyrrole

Indol [German]

FEMA No. 2593

CCRIS 4421

HSDB 599

EPA Pesticide Chemical Code 025000

1H-Benzo[b]pyrrole

Benzo[b]pyrrole

AI3-01540

NSC 1964

EINECS 204-420-7

MFCD00005607

UNII-8724FJW4M5

INDOLUM

DTXSID0020737

CHEBI:16881

8724FJW4M5

NSC-1964

CHEMBL15844

DTXCID40737

Indole 100 microg/mL in Acetonitrile

NCGC00167539-01

INDOLE (USP-RS)

INDOLE [USP-RS]

IND

CAS-120-72-9

benzazole

mono-indole

1-H-indole

Indole, 7

Indole (8CI)

Indole (white flake)

Indole, 98%

1H-Indole (9CI)

INDOLUM [HPUS]

INDOLE [FHFI]

INDOLE [HSDB]

INDOLE [FCC]

INDOLE [MI]

Indole, >=99%

SCHEMBL698

bmse000097

Indole, analytical standard

Indole, >=99%, FG

WLN: T56 BMJ

BIDD:GT0304

SCHEMBL940818

INDOLE BENZO-PYRROLE

SCHEMBL1921769

SCHEMBL9559244

AMY3411

NSC1964

185l

BCP27232

STR01201

Tox21_112536

Tox21_201677

Tox21_302937

BBL011739

BDBM50094702

s6358

STL163380

Indole, 3-Benzopyrrole, 1-benzazole

AKOS000119629

Tox21_112536_1

AT36838

CG-0501

CS-W001132

DB04532

HY-W001132

Indole, puriss., >=98.5% (GC)

MCULE-9442796928

NCGC00167539-02

NCGC00167539-03

NCGC00256348-01

NCGC00259226-01

BP-10563

DS-011308

I0021

NS00010849

EN300-18285

C00463

I-0800

I-0810

Q319541

SR-01000944736

SR-01000944736-1

Z57833933

F2190-0647

InChI=1/C8H7N/c1-2-4-8-7(3-1)5-6-9-8/h1-6,9

82451-55-6

The Henry's Law constant for indole is estimated as 5.3X10-7 atm-cu m/mole(SRC) from its experimental values for vapor pressure, 0.0122 mm Hg(1), and water solubility, 3560 mg/l(2). This value indicates that indole will be essentially nonvolatile from water surfaces(3,SRC). Indole's Henry's Law constant(1,2,SRC) indicates that volatilization from moist soil surfaces should not occur(SRC).
Literature: (1) Yaws CL; Handbook of Vapor Pressure. Volume 3. C8 to C28 Compounds. HOuston,TX: Gulf Publ Co (1994) (2) Yalkowsky SH, Dannenfelser RM; Aquasol Database of Aqueous Solubility. Ver 5. College of Pharmacy, University of Arizona - Tucson, AZ. PC Ver (1992) (3) Lyman WJ et al; Handbook of Chemical Property Estimation Methods. Washington DC: Amer Chem Soc pp. 15-1 to 15-29 (1990)

A Koc of 187 was measured for indole on a synthetic soil consisting of 88-90% sand, 10% clay and 0-2% humic acid(1). The Koc of indole is estimated as approximately 350(SRC), using a measured log Kow of 2.14(2) and a regression-derived equation(3,SRC). According to a recommended classification scheme(4), these Koc values suggest that indole has moderate mobility in soil(SRC).
Literature: (1) Rebhun M et al; Water Res 26: 79-84 (1992) (2) Hansch C et al; Exploring QSAR. Hydrophobic, Electronic, and Steric Constants. ACS Prof Ref Book. Amer Chem Soc, Washington, DC. p. 6 (1995) (3) Lyman WJ et al; Handbook of Chemical Property Estimation Methods. Washington DC: Amer Chem Soc pp. 4-9 (1990) (4) Swann RL et al; Res Rev 85: 23 (1983)

methanethiol

METHYL MERCAPTAN

Methylmercaptan

Mercaptomethane

74-93-1

Methyl sulfhydrate

Thiomethanol

Methanthiol

Thiomethyl alcohol

Metilmercaptano

Methvtiolo

Methylmercaptaan

Mercaptan methylique

Methaanthiol

Thiomethane

RCRA waste number U153

FEMA No. 2716

Methanethiole

CH3SH

methyl-mercaptan

Methyl thioalcohol

MeSH

UN 1064

2X8406WW9I

Methaanthiol [Dutch]

Methanthiol [German]

Methvtiolo [Italian]

Methylmercaptaan [Dutch]

Metilmercaptano [Italian]

Metilmercaptano [Spanish]

SCH 54292

Methyl mercaptan (natural)

Mercaptan methylique [French]

HSDB 813

EINECS 200-822-1

UN1064

RCRA waste no. U153

BRN 1696840

methylsulfanyl

methane thiol

methyl sulfides

methyl thiol

methyl-thiol

UNII-2X8406WW9I

(methyl)sulfane

Methylthioalcohol

a methyl thioether

sulfonium methylide

Methanethiol, purum

Methanethiol, 98.0%

METHANETHIOL [MI]

EC 200-822-1

Methanethiol, >=98.0%

4-01-00-01273 (Beilstein Handbook Reference)

METHYL MERCAPTAN [FHFI]

METHYL MERCAPTAN [HSDB]

DTXSID5026382

CHEBI:16007

CHEBI:86315

DTXSID10168842

DTXSID60992376

InChI=1/CH4S/c1-2/h2H,1H

NSC229573

AKOS009157032

NSC-229573

Methyl mercaptan [UN1064] [Poison gas]

NS00020025

C00409

Q409309

17719-48-1

Z22

The Henry's Law constant for methyl mercaptan is estimated as 0.0031 atm-cu m/mole(SRC) derived from its vapor pressure, 1,510 mm Hg(1), and water solubility, 15,400 mg/L(2). This Henry's Law constant indicates that methyl mercaptan is expected to volatilize rapidly from water surfaces(3). 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)(3) is estimated as 0.8 hours(SRC). The volatilization half-life from a model lake (1 m deep, flowing 0.05 m/sec, wind velocity of 0.5 m/sec)(3) is estimated as 2.8 days(SRC). Methyl mercaptan's Henry's Law constant indicates that volatilization from moist soil surfaces is expected to occur(SRC). Methyl mercaptan is expected to volatilize rapidly from dry soil surfaces based upon its vapor pressure and because it is a gas a temperatures above 6 deg C(SRC). However, gaseous methyl mercaptan gas has been found to strongly adsorb to moist and dry soil surfaces suggesting that adsorption might be an environmental sink for methyl mercaptan(4). Therefore, the importance of volatilization from soil surfaces may be attenuated by adsorption(SRC).
Literature: (1) Daubert TE, Danner RP; Physical and Thermodynamic Properties of Pure Chemicals Data Compilation. Washington, DC: Taylor and Francis (1989) (2) Hine J, Mookerjee PK; J Org Chem 40: 292-8 (1975) (3) Lyman WJ et al; Handbook of Chemical Property Estimation Methods. Washington, DC: Amer Chem Soc pp. 15-1 to 15-29 (1990) (4) Smith KA et al; Soil Sci 116: 313-9 (1973)

Using a structure estimation method based on molecular connectivity indices(1), the Koc of methyl mercaptan can be estimated to be 13(SRC). According to a classification scheme(2), this estimated Koc value suggests that methyl mercaptan is expected to have very high mobility in soil. Gaseous methyl mercaptan has been observed to partition to soils(3). For example, when gaseous methyl mercaptan was passed over six air-dried and moist (50% field capacity) soils, 2.4-32.1 mg/g and 2.2-21.4 mg/g of methyl mercaptan rapidly adsorbed to the dry and moist soils, respectively(3). Neither the capacity or rate of sorption was correlated to soil pH, organic matter content, or clay content; sterile controls ruled out the involvement of microorganisms(3); it was suggested that adsorption to soil surfaces might be an environmental sink for gaseous methyl mercaptan(3).
Literature: (1) US EPA; Estimation Program Interface (EPI) Suite. Ver. 4.1. Jan, 2011. Available from, as of July 19, 2012: http://www.epa.gov/oppt/exposure/pubs/episuitedl.htm (2) Swann RL et al; Res Rev 85: 17-28 (1983) (3) Smith KA et al; Soil Sci 116: 313-9 (1973)

acetic acid

ethanoic acid

64-19-7

Acetic acid glacial

Ethylic acid

Vinegar acid

Glacial acetic acid

Acetic acid, glacial

Methanecarboxylic acid

Acetasol

Essigsaeure

Acide acetique

Pyroligneous acid

Vinegar

Azijnzuur

Aceticum acidum

Acido acetico

Octowy kwas

Aci-jel

HOAc

ethoic acid

Kyselina octova

Orthoacetic acid

AcOH

Azijnzuur [Dutch]

Ethanoic acid monomer

Acetic

Essigsaeure [German]

Caswell No. 003

Otic Tridesilon

Octowy kwas [Polish]

Acetic acid (natural)

Acide acetique [French]

Acido acetico [Italian]

FEMA No. 2006

Kyselina octova [Czech]

MeCOOH

Acetic acid-17O2

Otic Domeboro

Acidum aceticum glaciale

Acidum aceticum

CH3-COOH

acetic acid-

CH3CO2H

UN2789

UN2790

EPA Pesticide Chemical Code 044001

NSC 132953

NSC-132953

NSC-406306

BRN 0506007

Acetic acid, diluted

INS NO.260

Acetic acid [JAN]

DTXSID5024394

MeCO2H

CHEBI:15366

AI3-02394

CH3COOH

INS-260

Q40Q9N063P

E-260

10.Methanecarboxylic acid

CHEMBL539

NSC-111201

NSC-112209

NSC-115870

NSC-127175

Acetic acid-2-13C,d4

INS No. 260

DTXCID304394

E 260

Acetic-13C2 acid (8CI,9CI)

Ethanoat

Shotgun

MFCD00036152

Acetic acid, of a concentration of more than 10 per cent, by weight, of acetic acid

285977-76-6

68475-71-8

C2:0

acetyl alcohol

Orlex

Vosol

ACETIC-1-13C-2-D3 ACID-1 H (D)

WLN: QV1

ACETIC ACID (MART.)

ACETIC ACID [MART.]

Acetic acid, >=99.7%

57745-60-5

63459-47-2

FEMA Number 2006

ACETIC-13C2-2-D3 ACID, 97 ATOM % 13C, 97 ATOM % D

Acetic acid, ACS reagent, >=99.7%

ACY

HSDB 40

CCRIS 5952

79562-15-5

methane carboxylic acid

EINECS 200-580-7

Acetic acid 0.25% in plastic container

Essigsaure

Ethylate

acetic aicd

acetic-acid

Glacial acetate

acetic cid

actic acid

UNII-Q40Q9N063P

acetic -acid

Distilled vinegar

Methanecarboxylate

Acetic acid, glacial [USP:JAN]

Acetasol (TN)

Acetic acid,glacial

Carboxymethyl radical

for LC-MS

Vinegar (Salt/Mix)

HOOCCH3

546-67-8

Acetic acid LC/MS Grade

ACETIC ACID [II]

ACETIC ACID [MI]

Acetic acid, ACS reagent

bmse000191

bmse000817

bmse000857

Otic Domeboro (Salt/Mix)

EC 200-580-7

Acetic acid (JP17/NF)

ACETIC ACID [FHFI]

ACETIC ACID [INCI]

Acetic Acid [for LC-MS]

ACETIC ACID [VANDF]

NCIOpen2_000659

NCIOpen2_000682

Acetic acid, glacial (USP)

4-02-00-00094 (Beilstein Handbook Reference)

77671-22-8

Glacial acetic acid (JP17)

UN 2790 (Salt/Mix)

ACETIC ACID [WHO-DD]

ACETIC ACID [WHO-IP]

ACETICUM ACIDUM [HPUS]

GTPL1058

Acetic Acid Glacial HPLC Grade

Acetic acid, analytical standard

Acetic acid, Glacial USP grade

Acetic acid, puriss., >=80%

Acetic acid, 99.8%, anhydrous

Acetic acid, AR, >=99.8%

Acetic acid, LR, >=99.5%

DTXSID001043500

Acetic acid, extra pure, 99.8%

Acetic acid, 99.5-100.0%

Acetic acid, Glacial, ACS Reagent

STR00276

Acetic acid, puriss., 99-100%

Tox21_301453

Acetic acid, glacial, >=99.85%

BDBM50074329

FA 2:0

LMFA01010002

NSC132953

NSC406306

STL264240

Acetic acid, for HPLC, >=99.8%

AKOS000268789

ACIDUM ACETICUM [WHO-IP LATIN]

DB03166

MCULE-8295936189

UN 2789

Acetic acid, >=99.5%, FCC, FG

Acetic acid, natural, >=99.5%, FG

Acetic acid, ReagentPlus(R), >=99%

CAS-64-19-7

USEPA/OPP Pesticide Code: 044001

Acetic acid, USP, 99.5-100.5%

NCGC00255303-01

Acetic acid 1000 microg/mL in Methanol

Acetic acid, SAJ first grade, >=99.0%

DB-085748

Acetic acid 1000 microg/mL in Acetonitrile

Acetic acid, >=99.99% trace metals basis

Acetic acid, JIS special grade, >=99.7%

Acetic acid, purified by double-distillation

NS00002089

Acetic acid, UV HPLC spectroscopic, 99.9%

EN300-18074

Acetic acid, Vetec(TM) reagent grade, >=99%

Bifido Selective Supplement B, for microbiology

C00033

D00010

ORLEX HC COMPONENT ACETIC ACID, GLACIAL

Q47512

VOSOL HC COMPONENT ACETIC ACID, GLACIAL

Acetic acid, glacial, electronic grade, 99.7%

TRIDESILON COMPONENT ACETIC ACID, GLACIAL

A834671

ACETASOL HC COMPONENT ACETIC ACID, GLACIAL

Acetic acid, >=99.7%, SAJ super special grade

ACETIC ACID, GLACIAL COMPONENT OF BOROFAIR

ACETIC ACID, GLACIAL COMPONENT OF ORLEX HC

ACETIC ACID, GLACIAL COMPONENT OF VOSOL HC

SR-01000944354

ACETIC ACID, GLACIAL COMPONENT OF TRIDESILON

SR-01000944354-1

ACETIC ACID, GLACIAL COMPONENT OF ACETASOL HC

Glacial acetic acid, meets USP testing specifications

InChI=1/C2H4O2/c1-2(3)4/h1H3,(H,3,4

Acetic acid, >=99.7%, suitable for amino acid analysis

Acetic acid, >=99.7%, for titration in non-aqueous medium

Acetic acid, for luminescence, BioUltra, >=99.5% (GC)

Acetic acid, p.a., ACS reagent, reag. ISO, reag. Ph. Eur., 99.8%

Acetic acid, semiconductor grade MOS PURANAL(TM) (Honeywell 17926)

Glacial acetic acid, United States Pharmacopeia (USP) Reference Standard

Acetic acid, puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., >=99.8%

Glacial Acetic Acid, Pharmaceutical Secondary Standard; Certified Reference Material

158461-04-2

2887-46-9

Acetic acid, puriss., meets analytical specification of Ph. Eur., BP, USP, FCC, 99.8-100.5%

The Henry's Law constant for acetic acid has been experimentally determined to be 1.43X10-7 atm-cu m/mole at 25 deg C(1). This Henry's Law constant indicates that acetic acid is expected to be essentially nonvolatile from water surfaces(2). Acetic acid's Henry's Law constant indicates that volatilization from moist soil surfaces is not expected to be an important fate process(SRC). Acetic acid is expected to volatilize from dry soil surfaces(SRC) based upon a vapor pressure of 15.7 mm Hg at 25 deg C(3).
Literature: (1) Johnson BJ et al; J Atmos Chem 24: 113-119 (1996) (2) Lyman WJ et al; Handbook of Chemical Property Estimation Methods. Washington, DC: Amer Chem Soc pp. 15-1 to 15-29 (1990) (3) Daubert TE, Danner RP; Physical and Thermodynamic Properties of Pure Chemicals: Data Compilation. Design Inst Phys Prop Data, Amer Inst Chem Eng. New York, NY: Hemisphere Pub Corp (1989)

A log Koc of 0.00 (Koc = 1), which was derived from experimental measurements, has been reported for acetic acid(1,2). According to a classification scheme(3), this Koc value suggests that acetic acid is expected to have very high mobility in soil. No detectable sorption was measured for acetic acid using the OECD Guideline 106 method employing an acidic forest soil, pH 2.8, an agricultural soil, pH 6.7, and a lake sediment, pH 7.1(4). Adsorption of acetic acid to 3 nearshore marine sediments collected from three different locations resulted in Kd values of 0.65 (Koc = 228), 0.085 (Koc = 6.5) and 0.046 (Koc = 27) using clastic mud (3.5% organic carbon, pH 7.0), muddy sand (1.3% organic carbon, pH 7.7), and carbonate sand (0.17% organic carbon, pH 8.1), respectively(5). The pKa of acetic acid is 4.76(6), indicating that this compound will exist partially in anion form in the environment and anions generally do not adsorb more strongly to soils containing organic carbon and clay than their neutral counterparts(7).
Literature: (1) Schuurmann G et al; Environ Sci Technol 40: 7005-7011 (Supplemental material) (2006) (2) Meylan WM et al; Environ Sci Technol 26: 1560-7 (1992) (3) Swann RL et al; Res Rev 85: 17-28 (1983) (4) Von Oepen B et al; Chemosphere 22: 285-304 (1991) (5) Sansone JF et al; Geochimica et Cosmochimica Acta 51: 1889-1896 (1987) (6) Serjeant EP, Dempsey B; Ionisation Constants of Organic Acids in Aqueous Solution. IUPAC Chemical Data Series No. 23. New York, NY: Pergamon Press, p. 989 (1979) (7) Doucette WJ; pp. 141-188 in Handbook of Property Estimation Methods for Chemicals. Boethling RS, Mackay D, eds. Boca Raton, FL: Lewis Publ (2000)
Literature: #In 24 hr aqueous adsorption studies using montmorillonite and kaolinite clay adsorbents, 2.4-30.4% of added acetic acid was observed to be in the adsorbed phase(1). In adsorption studies using the adsorbent hydroxyapatite (a mineral which occurs in the environment as a result of the diagenesis of skeletal apatite), only 5% of added acetic acid (in aqueous solution, pH 8.0) became adsorbed to the hydroxyapatite(2). Acetic acid has been noted to leach from biological disposal areas(3).
Literature: (1) Hemphill L, Swanson WS; Proc of the 18th Industrial Waste Conf, Eng Bull Purdue Univ, Lafayette IN 18: 204-17 (1964) (2) Gordon AS, Millero FJ; Microb Ecol 11: 289-98 (1985) (3) Abrams EF et al; Identification of Organic Compounds in Effluents from Industrial Sources. USEPA-560/3-75-002 p. 3 (1975)

acetoin

3-hydroxy-2-butanone

513-86-0

3-hydroxybutan-2-one

acetylmethylcarbinol

Dimethylketol

Acetyl methyl carbinol

2-Butanone, 3-hydroxy-

2,3-Butanolone

2-Hydroxy-3-butanone

1-Hydroxyethyl methyl ketone

Methanol, acetylmethyl-

Acetoin (natural)

gamma-Hydroxy-beta-oxobutane

3-hydroxyl-2-butanone

FEMA No. 2008

CCRIS 2918

HSDB 974

.gamma.-Hydroxy-.beta.-oxobutane

DL-Acetoin

NSC 7609

2-Acetoin

2-Butanol-3-one

AI3-03314

(+/-)-Acetoin

2-hydroxy-3-oxobutane

BG4D34CO2H

51555-24-9

DTXSID0024399

(+/-)-3-Hydroxybutan-2-one

NSC-7609

MFCD00004521

Acethoin

Butan-2-ol-3-one

EINECS 208-174-1

UN2621

UNII-BG4D34CO2H

1-Hydroxethyl methyl ketone

acetoine

BRN 0385636

acetylmethyl-

beta-oxobutane

2-Butanone, 3-hydroxy-, (R)-

b-oxobutane

Acetoin dimer

3-Oxo-2-butanol

ACETOIN MONOMER

DI-METHYLKETOL

Methanol, acetylmethyl

3-hydroxy-2-oxobutane

2-butanone, 3-hydroxy

3-hydroxy-butan-2-one

ACETOIN (DIMER)

Acetoin (~90%)

ACETOIN [FHFI]

ACETOIN [HSDB]

3-hydroxy-butane-2-one

ACETOIN [MI]

ACETOIN (MONOMER)

Acetoin, analytical standard

Butan-2-one, 3-hydroxy-

Acetoin, >=96%, natural

2-01-00-00870 (Beilstein Handbook Reference)

BUTAN-2-0L-3-ONE

DTXCID304399

ACETOIN (DIMER) [FCC]

CHEMBL3561873

CHEBI:15688

ACETOIN (MONOMER) [FCC]

NSC7609

Acetoin, natural, >=95%, FG

ACETOIN(MAY INCLUDE DIMER)

Acetoin, >=96%, FCC, FG

(S)-3-HYDROXY-2-BUTANONE

NSC89727

Tox21_302518

LMFA12000020

NSC-89727

AKOS000121293

AKOS017278202

MCULE-5374414264

UN 2621

2-Butanone, 3-hydroxy- (8CI,9CI)

Acetoin, May exist as crystalline dimer

Acetoin (may exist as crystalline dimer)

NCGC00256914-01

2-Butanone, 3-hydroxy-, (.+/-.)-

CAS-513-86-0

PD124062

3-Hydroxybutan-2-one (may include dimer)

DB-003392

H0225

NS00011932

EN300-21639

C00466

D93492

Q223083

Q-200581

Acetyl methyl carbinol [UN2621] [Flammable liquid]

2,3,5,6- TETRAMETHYL-1,4-DIOXANE-2,5-DIOL

F0001-1338

The Henry's Law constant for acetoin is estimated as 1.0X0-5 atm-cu m/mole(SRC) using a fragment constant estimation method(1). This Henry's Law constant indicates that acetoin 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 2 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 28 days(SRC). Acetoin's Henry's Law constant indicates that volatilization from moist soil surfaces may occur(SRC). Acetoin is expected to volatilize from dry soil surfaces(SRC) based upon an estimated vapor pressure of 2.7 mm Hg(SRC), determined from a fragment constant method(3).
Literature: (1) Meylan WM, Howard PH; Environ Toxicol Chem 10: 1283-93 (1991) (2) Lyman WJ et al; Handbook of Chemical Property Estimation Methods. Washington, DC: Amer Chem Soc pp. 15-1 to 15-29 (1990) (3) Lyman WJ; p. 31 in Environmental Exposure From Chemicals Vol I, Neely WB, Blau GE, eds, Boca Raton, FL: CRC Press (1985)

The Koc of acetoin is estimated as 2(SRC), using a water solubility of 1.0X10+6 mg/L(1) and a regression-derived equation(2). According to a classification scheme(3), this estimated Koc value suggests that aetoin is expected to have very high mobility in soil.
Literature: (1) Yalkowsky SH, Dannenfelser RM; The AQUASOL DATABASE of Aqueous Solubility. Ver 5. Tucson, AZ: Univ AZ, College of Pharmacy (1992) (2) Lyman WJ et al; Handbook of Chemical Property Estimation Methods. Washington, DC: Amer Chem Soc pp. 4-5 (1990) (3) Swann RL et al; Res Rev 85: 17-28 (1983)