isopropyl mercaptan
Food additive listed on the EAFUS Food Additive Database (Jan. 2001)
  • Advanced Biotech
  • DeLong Chemicals America
    • DeLong Chemicals America
      Custom Manufacturing
      Supplier of aroma chemicals, pharmaceutical and specialty chemical intermediates.
      DeLong Chemicals America, LLC is an extension of Shijiazhuang Lida Chemical Co, Ltd to North America, a leading supplier and manufacturer of aroma chemicals, serving the industries of food, tobacco and perfume, while also providing intermediates, custom synthesis and custom manufacturing for pharmaceutical and specialty chemical industries.
      US Email: Customer Service
      US Email: Sales
      US Voice: (203) 271-9017
      New products
      0205 2-Propanethiol
  • M&U International
    • M&U International LLC
      Steady supply & demand
      Meeting customers increasing demands at home as well as abroad.
      M&U dedicates itself to the development and production of new products as well as continuously promoting those new products. We’ve maintained a steady supply&demand relationship with a large number of manufacturers at home and abroad. We’ve developed an extensive network and because of our relationships with these manufacturers, we’re able to provide a stable supply of great quality materials. We’re located in China’s largest communications hub, Shanghai and in the U.S. near one of the largest sea ports on the East Coast. The strategic locations of our facilities ensure convenient, prompt and secure delivery of our products to our customers. We warmly welcome your inquiries, come witness our solemn commitment for yourself.
      Email: Sales
      US Email: Sales
      Voice: +86-21-32515501 60762991 60762992
      Fax: +86-21-32515502 64204960
      US Voice: 908-359-9000
      US Fax: 908-359-9002
      A0371 isoPropane Thiol, Kosher
  • Penta International
    • Penta International Corporation
      Chemistry innovation
      At Penta, our products and services help businesses do business better.
      For over 30 years, Penta Manufacturing Company has played a growing role in worldwide chemistry innovations and applications. As an industry leader, Penta continues to pioneer chemistry-based solutions for practically every area of commerce. Our products and expertise have helped fuel technical advances in dozens of commercial applications including flavoring, coloring, fragrances and chemical processes.
      US Email: Technical Services
      US Email: Sales
      US Voice: (973) 740-2300
      US Fax: (973) 740-1839
      16-67400 2-PROPANETHIOL, Kosher
  • Sigma-Aldrich
    • Sigma-Aldrich
      Complete Supply Chain
      The perfect blend of products and services that bring your creativity to life.
      Sigma-Aldrich is a leading Life Science and High Technology company dedicated to providing high-quality, safe and certified flavor ingredients with transparent and easily accessible documentation to customers around the globe. Sigma-Aldrich also provides a suite of analytical tools that allow food analysts to simplify sample preparation, cleanup and analysis steps, while increasing sensitivity to trace ingredients and harmful substances to meet regulations and quality standards.
      Email: Information
      US Email: Sales
      US Voice: 800-244-1173
      US Fax: 800-368-4661
      Certified Food Grade Products
      W389706 2-Propanethiol, ≥98%
      Moving Your Chemistry Forward
      We continuously strive to advance our technology.
      Tokyo Chemical Industry Co., Ltd. (TCI) is a leading worldwide manufacturer of specialty organic chemicals founded in 1946. TCI provides organic laboratory chemicals as well as pharmaceutical, cosmetic and functional materials. More than 60 years of synthesis experience and multi-purpose plants enable TCI to offer more than 27,000 products as well as custom synthesis. TCI established overseas facilities in North America, Europe, China and India to serve customers worldwide.
      Email: Sales
      US Email: Sales
      Email: Global Business
      Voice: +81-3-5640-8878
      Fax: +81-3-5640-8902
      US Voice: 800-423-8616
      US Fax: 888-520-1075
      Tokyo Tel:03-5640-8851
      Tokyo Fax:03-5640-8865
      P0489 2-Propanethiol >96.0%(GC)
Synonyms   Articles   Notes   Search
propane-2-thiol (Click)
CAS Number: 75-33-2Picture of molecule
ECHA EINECS - REACH Pre-Reg: 200-861-4
Nikkaji Web: J2.390F
Beilstein Number: 0605260
MDL: MFCD00004863
CoE Number: 11565
XlogP3-AA: 1.30 (est)
Molecular Weight: 76.16176000
Formula: C3 H8 S
BioActivity Summary: listing
NMR Predictor: Predict (works with chrome or firefox)
Category: flavoring agents
US / EU / FDA / JECFA / FEMA / FLAVIS / Scholar / Patent Information:
Google Scholar: Search
Google Books: Search
Google Scholar: with word "volatile"Search
Google Scholar: with word "flavor"Search
Google Scholar: with word "odor"Search
Perfumer and Flavorist: Search
Google Patents: Search
US Patents: Search
EU Patents: Search
Pubchem Patents: Search
PubMed: Search
NCBI: Search
JECFA Food Flavoring: 510  2-propanethiol
Flavis Number: 12.197 (Old)
DG SANTE Food Flavourings: 12.197  propane-2-thiol
FEMA Number: 3897  2-propanethiol
Synonyms   Articles   Notes   Search   Top
Physical Properties:
Appearance: colorless clear liquid (est)
Assay: 98.00 to 100.00 % 
Food Chemicals Codex Listed: No
Specific Gravity: 0.81400 to 0.81900 @  25.00 °C.
Pounds per Gallon - (est).: 6.773 to  6.815
Refractive Index: 1.42800 to 1.43400 @  20.00 °C.
Melting Point: -131.00 °C. @ 760.00 mm Hg
Boiling Point: 57.00 to  60.00 °C. @ 760.00 mm Hg
Vapor Pressure: 245.815994 mm/Hg @ 25.00 °C. (est)
Vapor Density: 2.6 ( Air = 1 )
Flash Point: -29.00 °F. TCC ( -33.89 °C. )
logP (o/w): 1.795 (est)
Soluble in:
 water, 4835 mg/L @ 25 °C (est)
Insoluble in:
Similar Items: note
allyl mercaptan
amyl mercaptan
isoamyl mercaptan
sec-amyl mercaptan
tert-amyl mercaptan
benzyl mercaptan
buchu mercaptan
butyl mercaptan
isobutyl mercaptan
tert-butyl mercaptan
cetyl mercaptan
cyclohexyl mercaptan
cyclopentyl mercaptan
decyl mercaptan
dodecyl mercaptan
2-ethyl hexyl mercaptan
ethyl mercaptan
ethylene mercaptan
furfuryl mercaptan
grapefruit mercaptan
heptyl mercaptan
hexyl mercaptan
methyl mercaptan
2-naphthyl mercaptan
nonyl mercaptan
octyl mercaptan
peach mercaptan
1-phenethyl mercaptan
2-phenethyl mercaptan
phenyl mercaptan
prenyl mercaptan
propyl mercaptan
2-thienyl mercaptan
3-thienyl mercaptan
tridecyl mercaptan
undecyl mercaptan
Synonyms   Articles   Notes   Search   Top
Organoleptic Properties:
Odor Type: alliaceous
Odor Strength: high ,
recommend smelling in a 0.10 % solution or less
 ripe  onion  gassy  meaty  sulfurous  
Odor Description:
at 0.10 % in propylene glycol. 
strong ripe onion gassy meaty sulfurous
Luebke, William tgsc, 1993)
 onion  sharp  pungent  meaty  sulfurous  brothy  chicken  
Odor Description:
at 0.01 % in ethyl alcohol.  
Onion, sharp and pungent, meaty sulfurous, brothy chicken and poultry-like
Mosciano, Gerard P&F 24, No. 6, 10, (1999)
 eggy  egg yolk  sulfurous  chicken  leek  onion  
Taste Description:
at 50.00 - 500.00 ppm. 
Soft-boiled egg yolk, hydrogen sulfide, rich mouth feel, strong poultry, leek and onion-like
Mosciano, Gerard P&F 24, No. 6, 10, (1999)
Synonyms   Articles   Notes   Search   Top
Cosmetic Information:
None found
Synonyms   Articles   Notes   Search   Top
Advanced Biotech
Advanced Biotech
Chevron Phillips
isoPropyl Mercaptan
DeLong Chemicals America
Jinan Enlighten Chemical Technology(Wutong Aroma )
2-Propanethiol Kosherk
M&U International
isoPropane Thiol, Kosher
Penta International
Santa Cruz Biotechnology
For experimental / research use only.
2-Propanethiol, ≥98%
Odor: meaty; sulfurous; alliaceous (onion, garlic)
Certified Food Grade Products
For experimental / research use only.
2-Propanethiol >96.0%(GC)
Tengzhou Jitian Aroma Chemiclal
isoPropyl Mercaptan
Synonyms   Articles   Notes   Search   Top
Safety Information:
Preferred SDS: View
European information :
Most important hazard(s):
Xi - Irritant
R 11 - Highly flammable.
R 36/37/38 - Irritating to eyes, respiratory system, and skin.
S 02 - Keep out of the reach of children.
S 16 - Keep away from sources of ignition - No Smoking.
S 23 - Do not breath vapour.
S 24/25 - Avoid contact with skin and eyes.
S 26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S 33 - Take precautionary measures against static discharge.
S 36/37/39 - Wear suitable clothing, gloves and eye/face protection.
Hazards identification
Classification of the substance or mixture
GHS Classification in accordance with 29 CFR 1910 (OSHA HCS)
None found.
GHS Label elements, including precautionary statements
Hazard statement(s)
None found.
Precautionary statement(s)
None found.
Oral/Parenteral Toxicity:
Not determined
Dermal Toxicity:
Not determined
Inhalation Toxicity:
inhalation-mouse LC50 130000 mg/m3/1H
National Technical Information Service. Vol. OTS0571940

Synonyms   Articles   Notes   Search   Top
Safety in Use Information:
Category: flavoring agents
Recommendation for isopropyl mercaptan usage levels up to:
 not for fragrance use.
Maximised Survey-derived Daily Intakes (MSDI-EU): ND (μg/capita/day)
Structure Class: I
Use levels for FEMA GRAS flavoring substances on which the FEMA Expert Panel based its judgments that the substances are generally recognized as safe (GRAS).
The Expert Panel also publishes separate extensive reviews of scientific information on all FEMA GRAS flavoring substances and can be found at FEMA Flavor Ingredient Library
publication number: 18
Click here to view publication 18
 average usual ppmaverage maximum ppm
baked goods: 0.100005.00000
beverages(nonalcoholic): 0.100005.00000
beverages(alcoholic): --
breakfast cereal: 0.100005.00000
cheese: --
chewing gum: --
condiments / relishes: --
confectionery froastings: --
egg products: --
fats / oils: --
fish products: --
frozen dairy: 0.100005.00000
fruit ices: --
gelatins / puddings: --
granulated sugar: --
gravies: 0.100005.00000
hard candy: --
imitation dairy: --
instant coffee / tea: --
jams / jellies: --
meat products: 0.100005.00000
milk products: 0.100005.00000
nut products: --
other grains: --
poultry: --
processed fruits: --
processed vegetables: --
reconstituted vegetables: --
seasonings / flavors: 20.00000200.00000
snack foods: --
soft candy: 0.100005.00000
soups: 0.100005.00000
sugar substitutes: --
sweet sauces: 0.100005.00000
Synonyms   Articles   Notes   Search   Top
Safety References:
European Food Safety Athority(efsa): Flavor usage levels; Subacute, Subchronic, Chronic and Carcinogenicity Studies; Developmental / Reproductive Toxicity Studies; Genotoxicity Studies...
European Food Safety Authority (EFSA) reference(s):
Flavouring Group Evaluation 8 (FGE.08)[1]: Aliphatic and alicyclic mono-, di-, tri-, and polysulphides with or without additional oxygenated functional groups from chemical group 20
View page or View pdf
Flavouring Group Evaluation 8, Revision 1 (FGE.08Rev1): Aliphatic and alicyclic mono-, di-, tri-, and polysulphides with or without additional oxygenated functional groups from chemical groups 20 and 30
View page or View pdf
Scientific Opinion on Flavouring Group Evaluation 8, Revision 3 (FGE.08Rev3): Aliphatic and alicyclic mono-, di-, tri-, and polysulphides with or without additional oxygenated functional groups from chemical groups 20 and 30
View page or View pdf
Scientific Opinion on Flavouring Group Evaluation 08, Revision 4 (FGE.08Rev4): Aliphatic and alicyclic mono-, di-, tri-, and polysulphides with or without additional oxygenated functional groups from chemical groups 20 and 30
View page or View pdf
Scientific Opinion on the safety and efficacy of aliphatic and aromatic mono- and di-thiols and mono-, di-, tri-, and polysulphides with or without additional oxygenated functional groups (chemical group 20) when used as flavourings for all animal species
View page or View pdf
EPI System: View
NLM Hazardous Substances Data Bank: Search
Env. Mutagen Info. Center: Search
EPA Substance Registry Services (TSCA): 75-33-2
EPA ACToR: Toxicology Data
EPA Substance Registry Services (SRS): Registry
Laboratory Chemical Safety Summary : 6364
National Institute of Allergy and Infectious Diseases: Data
WISER: UN 2402
WGK Germany: 3
Chemidplus: 0000075332
EPA/NOAA CAMEO: hazardous materials
RTECS: TZ7302000 for cas# 75-33-2
Synonyms   Articles   Notes   Search   Top
NIST Chemistry WebBook: Search Inchi
Canada Domestic Sub. List: 75-33-2
Pubchem (cid): 6364
Pubchem (sid): 134970893
Synonyms   Articles   Notes   Search   Top
Other Information:
(IUPAC): Atomic Weights of the Elements 2009
(IUPAC): Atomic Weights of the Elements 2009 (pdf)
Videos: The Periodic Table of Videos
tgsc: Atomic Weights use for this web site
(IUPAC): Periodic Table of the Elements
FDA Everything Added to Food in the United States (EAFUS): View
KEGG (GenomeNet): C08391
HMDB (The Human Metabolome Database): HMDB31634
FooDB: FDB008281
Export Tariff Code: 2930.90.9190
Haz-Map: View
VCF-Online: VCF Volatile Compounds in Food
ChemSpider: View
Read: Under the conditions of intended use - New developments in the FEMA GRAS program and the safety assessment of flavor ingredients
Read: A GRAS assessment program for flavor ingredients
Read: Sensory testing for flavorings with modifying properties. Food Technology
Read: Criteria for the safety evaluation of flavoring substances
Read: A procedure for the safety evaluation of natural flavor complexes used as ingredients in food: essential oils
Read: FEMA Expert Panel: 30 Years of safety evaluation for the flavor industry
Read: Consumption ratio and food predominance of flavoring materials
FAO: 2-Propanethiol
•liquid grade pennwalt corp •technical grade phillips chemical
Synonyms   Articles   Notes   Search   Top
Potential Blenders and core components note
For Odor
 dimethyl trisulfideFL/FR
 dipropyl disulfideFL/FR
 ferula assa-foetida gum oilFL/FR
 methyl furfuryl disulfideFL/FR
 propyl mercaptanFL/FR
 grapefruit mercaptanFL/FR
 coffee difuranFL/FR
 meaty dithianeFL/FR
4-methyl nonanoic acidFL/FR
 dimethyl disulfideFL/FR
 dimethyl sulfideFL/FR
 ethyl 2-mercaptopropionateFL/FR
 ferula assa-foetida absoluteFL/FR
 fish thiolFL/FR
2-mercaptopropionic acidFL/FR
 methyl 3-(methyl thio) propionateFL/FR
4-methyl 4-mercaptopentan-2-one 1% solutionFL/FR
2-methyl 5-(methyl thio) furanFL/FR
3-(methyl thio) hexanolFL/FR
 onion oilFL/FR
For Flavor
No flavor group found for these
 allyl methyl disulfideFL
 allyl methyl trisulfideFL
 allyl propyl disulfideFL
 allyl propyl sulfideFL
 allyl propyl trisulfideFL
isoamyl mercaptanFL
 benzyl methyl sulfideFL
 diethyl trisulfideFL
(Z+E)-2,5-dimethyl-3-tetrahydrofuran thiolFL
 dipropyl sulfideFL
 ethyl methyl trisulfideFL
 ethyl propyl disulfideFL
 ethyl propyl trisulfideFL
 heptyl mercaptanFL
3-mercapto-2-methyl pentanolFL
4-methyl 4-mercaptopentan-2-one 1% solutionFL/FR
2-(methyl thio) methyl-2-butenalFL
2-methyl-1-butane thiolFL
1,9-nonane dithiolFL
 propenyl propyl disulfideFL
isopropyl disulfideFL
 propyl mercaptanFL/FR
 allyl disulfideFL
 allyl mercaptanFL
 allyl thiopropionateFL
 benzyl mercaptanFL
1,3-butane dithiolFL
 cyclopentyl mercaptanFL
 dicyclohexyl disulfideFL
 diethyl disulfideFL
 dimethyl trisulfideFL/FR
 dipropyl disulfideFL/FR
 dipropyl trisulfideFL
 ferula assa-foetida gum oilFL/FR
 leek oilFL
 methyl 3-mercaptobutanoateFL
2-methyl thioacetaldehydeFL
 methyl 2-thiofuroateFL
 grapefruit mercaptanFL/FR
 coffee difuranFL/FR
 methyl furfuryl disulfideFL/FR
corn chip
1,8-octane dithiolFL
4-methyl nonanoic acidFL/FR
 allyl methyl sulfideFL
 garlic oleoresinFL
2,6-dimethyl thiophenolFL
2,5-dimethyl-3-furan thiolFL
 furfuryl 2-methyl-3-furyl disulfideFL
 meaty dithianeFL/FR
2-mercaptopropionic acidFL/FR
2-methyl 3-(methyl thio) furanFL
bis(2-methyl-3-furyl) disulfideFL
2-methyl-3-tetrahydrofuran thiolFL
 pyrazinyl ethane thiolFL
3-(methyl thio) hexanolFL/FR
2-methyl 5-(methyl thio) furanFL/FR
 ethyl 2-mercaptopropionateFL/FR
 methyl propyl disulfideFL
 methyl propyl trisulfideFL
 propyl thioacetateFL
 ethyl 3-(furfuryl thio) propionateFL
 allyl sulfideFL
2,3-butane dithiolFL
 butyl mercaptanFL
 diallyl polysulfidesFL
 diallyl tetrasulfideFL
 diallyl trisulfideFL
 dimethyl disulfideFL/FR
 dimethyl sulfideFL/FR
S-ethyl thioacetateFL
 ferula assa-foetida absoluteFL/FR
 fish thiolFL/FR
 furfuryl methyl sulfideFL
 furfuryl thiopropionateFL
3-mercapto-2-methyl pentanalFL
 methyl 2-(methyl thio) butyrateFL
 methyl 2-methyl-3-furyl disulfideFL
 methyl thiomethyl butyrateFL
2-methyl thiopheneFL
 onion oilFL/FR
 onion oleoresinFL
 methyl 3-(methyl thio) propionateFL/FR
Synonyms   Articles   Notes   Search   Top
Potential Uses:
 chocolate cocoa 
Synonyms   Articles   Notes   Search   Top
Occurrence (nature, food, other): note
Search  PMC Picture
Search Trop  Picture
Search Trop  Picture
 potato plant
Search Trop  Picture
Synonyms   Articles   Notes   Search   Top
1-methyl ethane thiol
2-propane thiol
isopropane thiol
2-propyl mercaptan
isopropyl thiol
Synonyms   Articles   Notes   Search   Top
Synonyms   Articles   Notes   Search   Top
Please share your Comments.
Email Address:
Top of Page Home
Copyright © 1980-2017 The Good Scents Company (tgsc) ™ Disclaimer Privacy Policy