Identification

Namemethyl mercaptan
IUPACmethanethiol
CAS Number74-93-1
EINECS200-822-1
FDA UNII2X8406WW9I
Molecular FormulaC H4 S
Molecular Weight48.10788000
MDL NumberMFCD00004866
Nikkaji NumberJ1.432J
Beilstein1696840
CoE Number475

Regulatory

JECFA Food Flavoring508 methyl mercaptan
DG SANTE Food Flavourings12.003 methanethiol
FEMA Number2716
FDANo longer provide for the use of these seven synthetic flavoring substances
FDA Mainterm (SATF)74-93-1 ; METHYL MERCAPTAN
FDA RegulationFDA PART 172 -- FOOD ADDITIVES PERMITTED FOR DIRECT ADDITION TO FOOD FOR HUMAN CONSUMPTION

Physical Properties

Appearance colorless gas or liquid <6 C (est)
Assay 98.00 to 100.00
Food Chemicals Codex Listed No
Specific Gravity 0.86200 to 0.89400 @ 5.80 °C.
Pounds per Gallon - (est). 7.173 to 7.439
Refractive Index 1.43000 to 1.43600 @ 5.80 °C.
Melting Point -123.00 to -121.00 °C. @ 760.00 mm Hg
Boiling Point 6.10 to 6.20 °C. @ 727.00 mm Hg, 5.90 to 6.00 °C. @ 760.00 mm Hg
Vapor Pressure 1901.066040 mmHg @ 25.00 °C. (est)
Vapor Density 1.66 ( Air = 1 )
Flash Point 70.00 °F. TCC ( 21.11 °C. )
logP (o/w) 0.932 (est)
Soluble in alcohol
Insoluble in water
Similar Items note

Organoleptic Properties

Odor Description
at 0.01 % in propylene glycol.
at 1.00 %.
boiled cabbage
Alcoholic, Cabbage
VEGETABLE, SULFUROUS, EGGY, CREAMY
Taste Description
at 1.00 ppm.
sulfurous

Safety Information

Preferred SDSView
European informationMost important hazard(s):
Oral/Parenteral Toxicityunreported-mammal (species unspecified) LD50 60670 ug/kg
Dermal ToxicityNot determined
Inhalation Toxicityinhalation-mouse LC50 6530 ug/m3/2H

GHS Classification

['GHS Classification in accordance with 29 CFR 1910 (OSHA HCS)', 'GHS Label elements, including precautionary statements']

Safety in Use

Categoryflavor and fragrance agents
RIFM Fragrance Material Safety AssessmentSearch
Maximised Survey-derived Daily Intakes (MSDI-EU)54.00 (μg/capita/day)
Structure ClassI
baked goods0.15000
beverages(nonalcoholic)-
beverages(alcoholic)-
breakfast cereal-
cheese-
chewing gum-
condiments / relishes-
confectionery froastings-
egg products-
fats / oils-
fish products-
frozen dairy0.13000
fruit ices0.13000
gelatins / puddings-
granulated sugar-
gravies-
hard candy0.13000
imitation dairy-
instant coffee / tea-
jams / jellies-
meat products-
milk products-
nut products-
other grains-
poultry-
processed fruits-
processed vegetables-
reconstituted vegetables-
seasonings / flavors-
snack foods-
soft candy-
soups-
sugar substitutes-
sweet sauces-

Advanced Biotech. Inc.

Inspired by Nature

A diverse range of products, all meeting our stringent commitment to quality.

View All Website 973-339-6242 info@adv-bio.com

Alfrebro LLC/ Archer Daniels Midland Company

Let's get reacquainted

Building great taste with aroma chemicals, extracts, and distillates

View All Website 513-539-7373 sforbis@alfrebro.com

Augustus Oils Ltd

The Premier Supplier

Augustus Oils Ltd, in harmony with nature - to present it at its best...

View All Website +44 (0)1420 590555 essentials@augustus-oils.ltd.uk

Charkit Chemical Corporation

The Specialty Chemical Specialists

Explore this website to discover the products and services that Charkit provides for your industry and please contact us directly to find out how we can be of service to you.

View All Website 203-299-3220 sales@charkit.com

Endeavour Specialty Chemicals Ltd

Expertise in high impact aroma chemicals

Endeavour Speciality Chemicals offers high-impact aroma chemicals, at small to medium scale.

View All Website +44 (0)1327 310 079 enquiries@endeavourchem.co.uk

Indukern, S.A. F&F Ingredients Division

Commitment to quality

Idukern F&F Ingredients is your partner for the fragrance and flavor ingredients.

View All Website +34 93 506 91 00 info@indukern.es

Natural Advantage

Manufacturer of natural flavor ingredients

With over 25 years experience in the flavor and food ingredient industries.

View All Website 318-215-1456 info@natadv.com

Penta International Corporation

Chemistry innovation

At Penta, our products and services help businesses do business better.

View All Website (973) 740-2300 lisaa@pentamfg.com

Riverside Aromatics Ltd.

Speciality Aroma Chemicals, Naturals and Synthetics

A specialist supplier of raw materials to the flavour industry.

View All Website +44 (0) 1202 679532 info@riversidearomatics.com

Robertet, Inc.

HOME OF NATURE, SEED TO SCENT

HOME OF NATURE – natural ingredients from the source.

View All Website +1.201.337.7100 info@robertetUSA.com

Robinson Brothers Limited

Providing Excellence in Chemistry

Award-winning UK chemical manufacturer of chemical intermediates and high-impact aroma chemicals.

View All Website +44 (0)121 553 2451 enquiries@robinsonbrothers.co.uk

SRS Aromatics Ltd

For over 25 years

Bringing flavour and fragrance into your world.

View All Website +44 (0) 1284 704076 info@srsaromatics.co.uk

Taytonn ASCC Pte Ltd

Supplying Asia Pacific

We fully understand the demands of the F&F industry and we endeavour to supply quality products, with ready availability and a personalised service.

View All Website + 65 - 6861 8113 info@taytonnascc.com

The Lermond Company

Your Sourcing Resource

The Lermond family has been sourcing raw materials for the flavor and fragrance industry for nearly 7 decades.

View All Website 201-896-3300 info@lermond.com

R C Treatt and Co Ltd

Innovative ingredient solutions

World-leading innovative ingredient solutions provider for the flavour, fragrance and FMCG industries.

View All Website +1 863 668 9500 enquiries@treatt.com

Potential Uses

FR algae FL beef FL butter FL cabbage FL coffee FL dairy FL egg FL garlic FL meat FL peanut FL savory FL shellfish

Natural Occurrence

algae red algae PMC asparagus beef PMC bread wheat bread PMC cabbage cheese gruyere cheese PMC chicken PMC egg PMC filbert roasted filbert garlic hop oil kohlrabi stem lamb PMC leek milk PMC mushroom shiitake mushroom fruit PMC onion bulb orange fruit juice pineapple fruit pork PMC potato plant radish seed shallot strawberry wild strawberry fruit tea leaf

Synonyms

mercaptomethane methane thiol methanethiol methyl mercaptan 1% PG natural methyl mercaptan 1% in ETOH natural methyl mercaptan 1% in PG natural methyl mercaptan 1% in vegetable oil natural methyl mercaptan 10% in triacetin methyl mercaptan 10% TEC synthetic methyl mercaptan, 1% in PG methyl mercaptan, 1% in triacetin methyl mercaptan, 10% in TEC methyl mercaptan, 10% in triacetin methyl mercaptan, 5% in PG methyl mercaptan, natural 1% in corn oil methyl mercaptan, natural 1% in neobee methyl mercaptan, natural 1% in P.G. methyl mercaptan, natural 10% in benzyl alcohol methyl mercaptan, natural 5% in ethanol methyl mercaptan, natural 5% in neobee methyl mercaptan, natural 5% in P.G. methyl sulfhydrate methyl thioalcohol methyl thiol methyl-mercaptan thiomethane thiomethanol thiomethyl alcohol Info: Volatile Flavor Components in Bogyojosaeng and Suhong Cultivars of Strawberry (Fragaria ananassa Duch.) PubMed: Characterization of the aroma signature of styrian pumpkin seed oil ( Cucurbita pepo subsp. pepo var. Styriaca) by molecular sensory science. PubMed: Methionine metabolism: major pathways and enzymes involved and strategies for control and diversification of volatile sulfur compounds in cheese. PubMed: Characterization of the major odor-active compounds in Thai durian ( Durio zibethinus L. 'Monthong') by aroma extract dilution analysis and headspace gas chromatography-olfactometry. PubMed: Complete genome sequence of Corynebacterium variabile DSM 44702 isolated from the surface of smear-ripened cheeses and insights into cheese ripening and flavor generation. PubMed: Effect of milk on the deodorization of malodorous breath after garlic ingestion. PubMed: Synthesis and odor evaluation of five new sulfur-containing ester flavor compounds from 4-ethyloctanoic acid. PubMed: Selective preconcentration of volatile mercaptans in small SPE cartridges: quantitative determination of trace odor-active polyfunctional mercaptans in wine. PubMed: Heterologous production of methionine-gamma-lyase from Brevibacterium linens in Lactococcus lactis and formation of volatile sulfur compounds. PubMed: Relationships between sensory descriptors, consumer acceptability and volatile flavor compounds of American dry-cured ham. PubMed: Volatile sulphur compounds in UHT milk. PubMed: Kinetic analysis of volatile formation in milk subjected to pressure-assisted thermal treatments. PubMed: Cloning and characterization of two Lactobacillus casei genes encoding a cystathionine lyase. PubMed: Identification of sulfur volatiles in canned orange juices lacking orange flavor. PubMed: Instrumental and sensory characterization of heat-induced odorants in aseptically packaged soy milk. PubMed: Role of cystathionine beta-lyase in catabolism of amino acids to sulfur volatiles by genetic variants of Lactobacillus helveticus CNRZ 32. PubMed: Short communication: empirical and mechanistic evidence for the role of pyridoxal-5'-phosphate in the generation of methanethiol from methionine. PubMed: YtjE from Lactococcus lactis IL1403 Is a C-S lyase with alpha, gamma-elimination activity toward methionine. PubMed: Identification of potent odorants formed during the preparation of extruded potato snacks. PubMed: Comparison of volatiles of cultured and wild sea bream (Sparus aurata) during storage in ice by dynamic headspace analysis/gas chromatography-mass spectrometry. PubMed: Development and validation of a plate technique for screening of microorganisms that produce volatile sulfur compounds. PubMed: Production of volatile organic sulfur compounds (VOSCs) by basidiomycetous yeasts. PubMed: Identification and functional analysis of the gene encoding methionine-gamma-lyase in Brevibacterium linens. PubMed: Investigation of the change in the flavor of a coffee drink during heat processing. PubMed: Flavor-active compounds potentially implicated in cooked cauliflower acceptance. PubMed: Characterization of the aroma of a meatlike process flavoring from soybean-based enzyme-hydrolyzed vegetable protein. PubMed: Effect of various dairy packaging materials on the headspace analysis of ultrapasteurized milk. PubMed: Diversity of sulfur compound production in lactic acid bacteria. PubMed: Changes in the odorants of boiled carp fillet (Cyprinus carpio L.) as affected by increasing methionine levels in feed. PubMed: Production of sulfur flavors by ten strains of Geotrichum candidum. PubMed: Sulfur metabolism in bacteria associated with cheese. PubMed: Volatile sulfur compounds in human expiration after eating raw or heat-treated garlic. PubMed: Use of 13C nuclear magnetic resonance and gas chromatography to examine methionine catabolism by lactococci. PubMed: Purification and characterization of L-methionine gamma-lyase from brevibacterium linens BL2 PubMed: Conversion of methionine to thiols by lactococci, lactobacilli, and brevibacteria PubMed: Purification and Characterization of Cystathionine (gamma)-Lyase from Lactococcus lactis subsp. cremoris SK11: Possible Role in Flavor Compound Formation during Cheese Maturation. PubMed: Purification and Characterization of Cystathionine (beta)-Lyase from Lactococcus lactis subsp. cremoris B78 and Its Possible Role in Flavor Development in Cheese. PubMed: Identification of the volatile compounds produced in sterile fish muscle (Sebastes melanops) by Pseudomonas fragi.