Methylmercaptaan

Mercaptomethane

Metilmercaptano

methylsulfanium

Methylmercaptan

Methaanthiol

Thiomethanol

methanethiol

Methanethiole

Thiomethane

Mercaptan methylique

Methanthiol

Methvtiolo

(Mercaptomethyl)polystyrene

LSDPWZHWYPCBBB-UHFFFAOYSA-N

Methyl sulfhydrate

Thiomethyl alcohol

Methyl thioalcohol

METHYL MERCAPTAN

methyl-mercaptan

methane thiol

methyl thiol

methyl-thiol

Methanethiol, purum

CH3SH

Methanethiol-S-d

Mercaptan C1

Metilmercaptano [Italian]

Metilmercaptano [Spanish]

Methylmercaptaan [Dutch]

Methanthiol [German]

Methvtiolo [Italian]

Z22

Mercaptan methylique [French]

AC1L1A8B

Methaanthiol [Dutch]

Methyl mercaptan (natural)

UN1064

CTK2H7493

HSDB 813

HMDB03227

C00409

2X8406WW9I

RCRA waste number U153

OR332408

NSC229573

OR000105

OR164971

OR230018

OR230158

UN 1064

DTXSID5026382

Methanethiol, >=98.0%

LS-2938

CHEBI:16007

UNII-2X8406WW9I

Methanethiol, 98.0%

AN-23827

SC-46829

NSC-229573

AKOS009157032

RCRA waste no. U153

BRN 1696840

FEMA No. 2716

FT-0696326

74-93-1

EINECS 200-822-1

63933-47-1

17719-48-1

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

Methyl mercaptan [UN1064] [Poison gas]

(Mercaptomethyl)polystyrene, extent of labeling: ~2.0 mmol/g S loading

5188-07-8 (hydrochloride salt)

Methyl mercaptan [UN1064] [Poison gas]

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

21094-80-4 (mercury(2+) salt)

35029-96-0 (lead(2+) salt)

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)

Methanethiol butyrate

Methyl thiobutanoate

Methyl thiolbutyrate

GRLJIIJNZJVMGP-UHFFFAOYSA-N

Methane n-thiolbutyrate

Methanethiol n-butyrate

S-Methyl butanethioate

S-Methyl thiobutyrate

Butanethioic acid,S-methyl ester

S-Methyl butanethioate #

Thiobutyric Acid S-Methyl Ester

AC1L1X4T

Methyl thiobutyrate (natural)

BUTANETHIOIC ACID, S-METHYL ESTER

ACMC-209gaw

M1818

CTK4F3391

2P1E432MYZ

SCHEMBL722981

S-Methyl thiobutanoate, 98%

UNII-2P1E432MYZ

ZINC409240

ZB013888

S-(methyl thio) butyrate

DTXSID5047669

OR012310

CHEBI:89255

1-(methylsulfanyl)butan-1-one

ACM2432511

AN-20806

ANW-25398

Methyl thiobutyrate, >=97%, FG

FCH3464393

MFCD00009872

ZINC00409240

TC-114143

LS-179173

Q-100312

AKOS015950859

J-800454

FEMA No. 3310

Methyl thiobutyrate, natural, 98%, FG

Butyric acid, thio-, S-methyl ester

2432-51-1

EINECS 219-407-1

MolPort-003-929-056

IAMIOPHEADLKFT-UHFFFAOYSA-N

S-Methyl2-methylthiobutyrate

Methylthio 2-methylbutyrate

S-Methyl 2-methylbutanethioate

S-METHYL 2-METHYLTHIOBUTYRATE

S-tropical 2-thiobutyrate

2-Methylbutanethioic acid S-methyl ester

AC1L22Z7

Methyl 2-methyl(thiobutyrate)

CTK4I5673

SCHEMBL3504471

OR269538

OR032241

FCH841118

3-(4-Aminobenzoyl)butyric acid

DB-003774

ACM42075456

AKOS006273084

FT-0693528

Butanethioic acid,2-methyl-, S-methyl ester

2-methyl-1-(methylsulfanyl)butan-1-one

Butanethioic acid, 2-methyl-, S-methyl ester

EINECS 255-648-9

42075-45-6

Methylthioacetate

Methyl thiolacetate

Methanethiol acetate

methyl ethanethioate

S-METHYLTHIOACETATE

OATSQCXMYKYFQO-UHFFFAOYSA-N

S-Methyl ethanethioate

S-Methyl thioacetate

AC1L2KFM

S-Methyl thioacetate, AldrichCPR

S-Methyl ethanethioate #

Thioacetic acid S-methyl ester

Ethanethioic acid, methyl ester

AC1Q68RR

ACMC-1BTZ5

PF2D4MWX79

KSC493A2H

Ethanethioic acid, S-methyl ester

UNII-PF2D4MWX79

M2286

CTK3J3023

CH3C(O)SCH3

FCH918358

OR031401

OR224946

OR224947

DTXSID3073264

ZINC2004049

CHEBI:51280

CJ-07327

1-(methylsulfanyl)ethan-1-one

AB1006061

AN-49402

CJ-30959

ZINC02004049

MFCD00014989

Ethanethioic acid,S-methyl ester (9CI)

RT-001199

Q-100182

I09-0174

AKOS006229807

FT-0659567

Acetic acid, thio-, S-methyl ester

S-Methyl thioacetate, natural, >=96%, FG

1534-08-3

EINECS 216-252-1

MolPort-006-113-372

InChI=1/C3H6OS/c1-3(4)5-2/h1-2H

Methanethiol caproate

AKGAHYLJHAOPKQ-UHFFFAOYSA-N

S-Methyl hexanethioate

methyl thiohexanoate, AldrichCPR

S-Methyl thiohexanoate

QRL

AC1L2OXC

S-Methyl hexanethioate #

AC1Q68RX

MC7G128ACI

U833

Hexanethioic acid, S-methyl ester

UNII-MC7G128ACI

S-(methyl thio) hexanoate

LP004199

FCH847782

DTXSID1062417

SCHEMBL3506754

ZINC1841229

ACM2432771

1-(METHYLSULFANYL)HEXAN-1-ONE

I09-1878

AKOS006277831

2432-77-1

EINECS 219-410-8

Methanethiol isovalerate

S-Methylisovalerate

MPLWTJZAFOVXKP-UHFFFAOYSA-N

Methane thiol isovalerate; Methyl isopentanethioate

s-methyl thioisovalerate

methyl thio isovalerate

AC1L3JKR

S-Methyl 3-methylbutanethioate

S-Methyl 3-methylthiobutyrate

AC1Q68RW

3-Methylbutanethioic acid S-methyl ester

U810

UB23WZ59H0

UNII-UB23WZ59H0

Fema 3864

OR037950

OR245953

DTXSID3066928

SCHEMBL3506127

CHEBI:89436

ZINC5360197

KB-51861

AB1006105

I09-1132

AKOS006288153

FT-0659795

Butanethioic acid,3-methyl-, S-methyl ester

3-METHYL-1-(METHYLSULFANYL)BUTAN-1-ONE

Butanethioic acid, 3-methyl-, S-methyl ester

EINECS 245-863-6

23747-45-7

METHYLTHIOPROPIONATE

AIILTVHCLAEMDA-UHFFFAOYSA-N

s-methyl thiopropionate

S-Methyl thiopropanoate

S-Methyl propanethioate

AC1LAW6I

Propanethioicacid, S-methyl ester

Propanethioic acid S-methyl ester

Propanethioic acid, S-methyl ester

3WP1B49B1P

S-Methyl propanethioate [FHFI]

CTK5A9666

UNII-3WP1B49B1P

FCH837873

SCHEMBL1245998

1-(methylsulfanyl)propan-1-one

ZINC32154765

Q-100686

AKOS006272057

FEMA No. 4172

Propionic acid, thio-, S-methyl ester

5925-75-7

Methyl isobutanethioate

JODNYDRGCYHKRC-UHFFFAOYSA-N

S-Methyl2-methylpropanethioate

S-Methyl 2-methylpropanethioate

S-methyl 2-methylthiopropionate

AC1LBL41

AC1Q68RT

2-Methylpropanethioic acid S-methyl ester

CTK1D4981

C49X23N7M7

SCHEMBL8581184

UNII-C49X23N7M7

DTXSID20194915

AKOS025396852

FEMA No. 4586

Propanethioic acid, 2-methyl-, S-methyl ester

42075-42-3

MWHCJABIXNVCHK-UHFFFAOYSA-N

S-Methyl pentanethioate

AC1LC1AI

Pentanethioic acid S-methyl ester

Pentanethioic acid, S-methyl ester

CTK1D3450

LP088550

SCHEMBL2554932

1-(METHYLSULFANYL)PENTAN-1-ONE

DTXSID20338054

42075-43-4