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3-mercaptoisobutyric acid
propanoic acid, 3-mercapto-2-methyl-

Supplier Sponsors

Name:2-methyl-3-sulfanylpropanoic acid
CAS Number: 26473-47-2Picture of molecule3D/inchi
ECHA EINECS - REACH Pre-Reg:247-726-6
FDA UNII: V3E4016VAS
Nikkaji Web:J248.947C
MDL:MFCD00671555
XlogP3-AA:0.60 (est)
Molecular Weight:120.17116000
Formula:C4 H8 O2 S
NMR Predictor:Predict (works with chrome, Edge or firefox)
EFSA/JECFA Comments:
(R) or (S) enantiomer not specified by CASrn in Register. Racemate (EFFA, 2010a).
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
DG SANTE Food Flavourings:12.135 3-mercapto-2-methylpropionic acid
 
Physical Properties:
Assay: 95.00 to 100.00
Food Chemicals Codex Listed: No
Melting Point: 43.00 °C. @ 760.00 mm Hg
Boiling Point: 232.00 to 234.00 °C. @ 760.00 mm Hg
Vapor Pressure:0.021000 mmHg @ 25.00 °C. (est)
Flash Point: 201.00 °F. TCC ( 93.89 °C. )
logP (o/w): 0.733 (est)
Soluble in:
 alcohol
 water
 water, 3.925e+004 mg/L @ 25 °C (est)
 
Organoleptic Properties:
Odor and/or flavor descriptions from others (if found).
 
Cosmetic Information:
None found
 
Suppliers:
BOC Sciences
For experimental / research use only.
3-Mercaptoisobutyric Acid > 95%
Carbosynth
For experimental / research use only.
3-Mercaptoisobutyric Acid
Santa Cruz Biotechnology
For experimental / research use only.
3-Mercapto-2-Methylpropanoic Acid
Sigma-Aldrich
For experimental / research use only.
Captopril impurity C European Pharmacopoeia (EP) Reference Standard
TCI AMERICA
For experimental / research use only.
3-Mercaptoisobutyric Acid >98.0%(GC)(T)
 
Safety Information:
Preferred SDS: View
 
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
 
Pictogram
 
Hazard statement(s)
None found.
Precautionary statement(s)
None found.
Oral/Parenteral Toxicity:
Not determined
Dermal Toxicity:
Not determined
Inhalation Toxicity:
Not determined
 
Safety in Use Information:
Category:
flavoring agents
Recommendation for 3-mercaptoisobutyric acid usage levels up to:
 not for fragrance use.
 
Maximised Survey-derived Daily Intakes (MSDI-EU): 0.12 (μg/capita/day)
Modified Theoretical Added Maximum Daily Intake (mTAMDI): 78 (μg/person/day)
Threshold of Concern:1800 (μg/person/day)
Structure Class: I
 
Food categories according to Commission Regulation EC No. 1565/2000 (EC, 2000) in FGE.06 (EFSA, 2002a). According to the Industry the "normal" use is defined as the average of reported usages and "maximum use" is defined as the 95th percentile of reported usages (EFSA, 2002i).
Note: mg/kg = 0.001/1000 = 0.000001 = 1/1000000 = ppm.
 average usage mg/kgmaximum usage mg/kg
Dairy products, excluding products of category 02.0 (01.0): 0.200001.00000
Fats and oils, and fat emulsions (type water-in-oil) (02.0): 0.100000.50000
Edible ices, including sherbet and sorbet (03.0): 0.200001.00000
Processed fruit (04.1): 0.200001.00000
Processed vegetables (incl. mushrooms & fungi, roots & tubers, pulses and legumes), and nuts & seeds (04.2): --
Confectionery (05.0): 0.200001.00000
Chewing gum (05.3): --
Cereals and cereal products, incl. flours & starches from roots & tubers, pulses & legumes, excluding bakery (06.0): 0.100000.50000
Bakery wares (07.0): 0.200001.00000
Meat and meat products, including poultry and game (08.0): 0.100000.20000
Fish and fish products, including molluscs, crustaceans and echinoderms (MCE) (09.0): 0.100000.20000
Eggs and egg products (10.0): --
Sweeteners, including honey (11.0): --
Salts, spices, soups, sauces, salads, protein products, etc. (12.0): 0.100000.50000
Foodstuffs intended for particular nutritional uses (13.0): 0.200001.00000
Non-alcoholic ("soft") beverages, excl. dairy products (14.1): 0.100000.30000
Alcoholic beverages, incl. alcohol-free and low-alcoholic counterparts (14.2): 0.200001.00000
Ready-to-eat savouries (15.0): 0.400002.00000
Composite foods (e.g. casseroles, meat pies, mincemeat) - foods that could not be placed in categories 01.0 - 15.0 (16.0): 0.100000.50000
 
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 74 (FGE.74)[1]: Consideration of Simple Aliphatic Sulphides and Thiols evaluated by JECFA (61st meeting) Structurally related to Aliphatic and Alicyclic Mono-, Di-, Tri-, and Polysulphides with or without Additional Oxygenated Functional Groups from Chemical Group 20 evaluated by EFSA in FGE.08 (2008)
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

Flavouring Group Evaluation 91 (FGE.91): Consideration of simple aliphatic and aromatic sulphides and thiols evaluated by JECFA (53rd and 68th meetings) structurally related to aliphatic and alicyclic mono-, di-, tri-, and polysulphides with or without additional oxygenated functional groups evaluated by EFSA in FGE.08Rev1 (2009)
View page or View pdf

Flavouring Group Evaluation 08 Rev2 (FGE.08 Rev2): 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 Flavouring Group Evaluation 08, Revision 5 (FGE.08Rev5): 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

EPI System: View
AIDS Citations:Search
Cancer Citations:Search
Toxicology Citations:Search
EPA ACToR:Toxicology Data
EPA Substance Registry Services (SRS):Registry
Laboratory Chemical Safety Summary :152910
National Institute of Allergy and Infectious Diseases:Data
WGK Germany:3
2-methyl-3-sulfanylpropanoic acid
Chemidplus:0026473472
 
References:
 2-methyl-3-sulfanylpropanoic acid
NIST Chemistry WebBook:Search Inchi
Pubchem (cid):152910
Pubchem (sid):135110819
 
Other Information:
(IUPAC):Atomic Weights of the Elements 2011 (pdf)
Videos:The Periodic Table of Videos
tgsc:Atomic Weights use for this web site
(IUPAC):Periodic Table of the Elements
FDA Substances Added to Food (formerly EAFUS):View
CHEMBL:View
HMDB (The Human Metabolome Database):Search
Export Tariff Code:2930.90.4950
VCF-Online:VCF Volatile Compounds in Food
ChemSpider:View
 
Potential Blenders and core components note
None Found
 
Potential Uses:
None Found
 
Occurrence (nature, food, other):note
 asparagus - 0.2 mg/kg
Search Trop Picture
 
Synonyms:
3-mercapto-2-methyl propionic acid
3-mercapto-2-methylpropionic acid
2-methyl-3-sulfanylpropanoic acid
 propanoic acid, 3-mercapto-2-methyl-
 
 
Notes:
None found
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