Basic information
- CAS
5466-06-8- Standard SMILES
CCOC(=O)CCS- InChIKey
CJQWLNNCQIHKHP-UHFFFAOYSA-N- Molecular formula
- C5H10O2S
- Average molar mass
- 134.2 g/mol
- Monoisotopic mass
- 134.04015056
Overview
Ethyl 3-mercaptopropanoic acid is a carboxylic ester.
Names & identifiers
- Preferred name
- Ethyl 3-mercaptopropionate
- IUPAC
- ethyl 3-sulfanylpropanoate
- English name
- Ethyl 3-mercaptopropionate
- Molecular formula
- C5H10O2S
- Molecular weight
- 134.2
Names & synonyms
Show more names
Database identifiers
- CAS
5466-06-8- PubChem CID
- 21625
- DTXSID
DTXSID7063922- ChEMBL
CHEMBL3234723- ChEBI
CHEBI:173554- UNII
- 22GQZ8P70D
- EC Number
- 226-771-5
- Nikkaji
- J101.168E
Properties
Computed structural properties
- XLogP
- 0.7
- Topological polar surface area
- 27.3 Ų
- Hydrogen bond donors
- 1
- Hydrogen bond acceptors
- 3
- Rotatable bonds
- 4
- Heavy atoms
- 8
- Formal charge
- 0
- Complexity
- 72.8
Experimental & physicochemical properties
Boiling Point
75.00 to 76.00 °C. @ 10.00 mm Hg
162 °C
Physical Description
Liquid; [Sigma-Aldrich MSDS]
clear liquid
Physicochemical properties
- Boiling point
- 75 · 75-76 °C/10 mmHg(lit.)
- Density
- 1.059 g/mL · 1.059 g/mL at 20 °C(lit.)
- refractive index
- 20 · n20/D 1.457(lit.)
- FEMA
- 3677 · 3677 | ETHYL 3-MERCAPTOPROPIONATE
- FLAVIS Number
- 12.083 · 12.083 | Ethyl 3-mercaptopropionate
- Flash point
- 72 °C · 72°C
- pka
- 9.72 · 9.72±0.10(Predicted)
- form
- Liquid
- color
- Clear colorless to yellow, may darken during storage
- Odor
- 0.1 % · at 0.10 % in propylene glycol. animal foxy fruity grape skunky
- Odor Type
- sulfurous
- JECFA Number
- 553 · 553
- Stability
- Stable. Combustible. Incompatible with strong oxidizing agents, strong bases.
- LogP
- 1.4 · 1.40
- CAS DataBase Reference
- 5466 · 5466-06-8(CAS DataBase Reference)
- Substances Added to Food (formerly EAFUS)
- 3 · ETHYL 3-MERCAPTOPROPIONATE
- EWG's Food Scores
- 1 · 1
- FDA UNII
- 22 GQZ8P70D · 22GQZ8P70D
- NIST Chemistry Reference
- 3 · Propanoic acid, 3-mercapto-, ethyl ester(5466-06-8)
- EPA Substance Registry System
- 3 · Ethyl 3-mercaptopropionate (5466-06-8)
- Symbol(GHS)
- 7 · GHS07
- Signal word
- Warning
- Hazard statements
- 319 · H319-H335-H315
- Precautionary statements
- 264 · P264-P280-P305+P351+P338-P337+P313P-P264-P280-P302+P352-P321-P332+P313-P362
- Hazard Codes
- Xi
- Risk Statements
- 36 · 36/37/38
- Safety Statements
- 26 · 26-36/37/39
- TSCA
- TSCA listed
- HS Code
- 29309090 · 29309090
Safety & regulation
GHS classification
GHS Classification
This chemical does not meet GHS hazard criteria for 0.8% (11 of 1442) of reports.
Warning
H315 (99.2%): Causes skin irritation [Warning Skin corrosion/irritation]
P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 1442 reports by companies from 8 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Hazard information
Regulatory Information
Chemical: Propanoic acid, 3-mercapto-, ethyl ester
Propanoic acid, 3-mercapto-, ethyl ester: Does not have an individual approval but may be used under an appropriate group standard
Safety data
- tsca
- TSCA listed
- hs_code
- 29309090
- risk_code
- 36/37/38
- Signal word
- Warning
- Symbol(GHS)
- GHS07
- hazard_code
- Xi
- safety_code
- 26-36/37/39
- Hazard statements
- H319-H335-H315
- Precautionary statements
- P264-P280-P305+P351+P338-P337+P313P-P264-P280-P302+P352-P321-P332+P313-P362
Chemistry & industry
Pharmacology
Uses & manufacturing
Use Classification
Flavouring Agent -> FLAVOURING_AGENT -> JECFA Functional Classes
Flavoring Agents -> JECFA Flavorings Index
Flavouring Agent -> FLAVOURING_AGENT -> JECFA Functional Classes
Applications
OccurrenceReported found in Vitis labrusca and mountain papaya (C. pubescens).
UsesEthyl 3-Mercaptopropanoate is a useful synthetic intermediate. It can be used to prepare acylaminobutyldecahydroisoquinolines with HIV protease-inhibiting activities. It can also be used to prepare new anti-MRSA cephalosporins (cephalosporins C zinc salt, C258750).
Upstream & downstream products
Downstream products
Suppliers100 total
Additional notes
DefinitionChEBI: Ethyl 3-mercaptopropanoic acid is a carboxylic ester.
Related reactions
Compound notes
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