Methyl 3-chloro-3-oxopropanoate
Also known as: Methyl malonyl chloride, 3-Chloro-3-oxopropionic Acid Methyl Ester, (Chloroformyl)acetic Acid Methyl Ester, 3-methoxy-3-oxopropanoyl chloride, Methyl chloroformylacetate, methoxycarbonylacetyl chloride, methyl chlorocarbonyl acetate, methyl-3-chlorooxopropionate, Propanoic acid, 3-chloro-3-oxo-, methyl ester, EINECS 253-540-6, MFCD00013657
Methyl 3-chloro-3-oxopropanoate (CAS 37517-81-0) is a compound in the Organohalogen Compounds category listed in the Jingsj chemical database. It has the molecular formula C4H5ClO3 and a molecular weight of 136.534 g/mol. Key properties include a boiling point of 167.5±0.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 80.0±0.0 °C. It is classified under GHS with signal word Danger and hazard statements H314 — Causes severe skin burns and eye damage and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 37517-81-0
- Jingsj CID
- J-1510232-6
- Molecular Formula
- C4H5ClO3
- Molecular Weight
- 136.534 g/mol
- Category
- Organohalogen Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 167.5±0.0 °C at 760 mmHg |
|---|---|
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 80.0±0.0 °C |
| Exact Mass | 135.992722 |
| PSA | 43.37000 |
| LogP | 0.56 |
| Vapor Pressure | 1.7±0.3 mmHg at 25°C |
| Refractive Index | 1.425 |
GHS Safety & Compliance
- H314 — Causes severe skin burns and eye damage
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 2918300090 |
|---|---|
| Summary | 2918300090 other carboxylic acids with aldehyde or ketone function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of Methyl 3-chloro-3-oxopropanoate?
The CAS number of Methyl 3-chloro-3-oxopropanoate is 37517-81-0.
What are the molecular formula and molecular weight of Methyl 3-chloro-3-oxopropanoate?
Methyl 3-chloro-3-oxopropanoate has molecular formula C4H5ClO3 and molecular weight 136.534 g/mol.
Is Methyl 3-chloro-3-oxopropanoate hazardous?
Methyl 3-chloro-3-oxopropanoate has GHS signal word Danger and hazard statements H314 — Causes severe skin burns and eye damage; H335 — May cause respiratory irritation.
What are the upstream and downstream products of Methyl 3-chloro-3-oxopropanoate?
For Methyl 3-chloro-3-oxopropanoate, Upstream Products: Potassium 3-methoxy-3-oxopropanoate, Monomethyl malonate; Downstream Products: Phenyl isothiocyanate, Methyl 3-oxovalerate, methyl 3-(methylamino)-3-oxopropanoate.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Methyl 3-chloro-3-oxopropanoate (CAS 37517-81-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1510232-6 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.