Methyl chlorooxoacetate
Also known as: methyl oxalyl chloride, methyl 2-chloro-2-oxoacetate
Methyl chlorooxoacetate (CAS 5781-53-3) is a compound in the Organohalogen Compounds category listed in the Jingsj chemical database. It has the molecular formula C3H3ClO3 and a molecular weight of 122.50700 g/mol. Key properties include a boiling point of 118-120 °C(lit.), a density of 1.332 g/mL at 25 °C(lit.) and a flash point of 46.7 °C. It is classified under GHS with signal word Danger and hazard statements H226 — Flammable liquid and vapour and H314 — Causes severe skin burns and eye damage. No supplier offers are currently listed; request a quote. Record last updated Nov 2, 2026.
- CAS No.
- 5781-53-3
- Jingsj CID
- J-15230-7
- Molecular Formula
- C3H3ClO3
- Molecular Weight
- 122.50700 g/mol
- Category
- Organohalogen Compounds
- Last updated
- 11/2/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 118-120 °C(lit.) |
|---|---|
| Density | 1.332 g/mL at 25 °C(lit.) |
| Flash Point | 46.7 °C |
| Exact Mass | 121.97700 |
| PSA | 43.37000 |
| Refractive Index | n20/D 1.419(lit.) |
GHS Safety & Compliance
- H226 — Flammable liquid and vapour
- H314 — Causes severe skin burns and eye damage
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 chlorooxoacetate?
The CAS number of Methyl chlorooxoacetate is 5781-53-3.
What are the molecular formula and molecular weight of Methyl chlorooxoacetate?
Methyl chlorooxoacetate has molecular formula C3H3ClO3 and molecular weight 122.50700 g/mol.
Is Methyl chlorooxoacetate hazardous?
Methyl chlorooxoacetate has GHS signal word Danger and hazard statements H226 — Flammable liquid and vapour; H314 — Causes severe skin burns and eye damage.
What are the upstream and downstream products of Methyl chlorooxoacetate?
For Methyl chlorooxoacetate, Upstream Products: Methanol, Oxalyl chloride, Dichloromethoxyacetic acid methyl ester; Downstream Products: methyl 2-oxo-2-(1H-pyrrolo[2,3-b]pyridin-3-yl)acetate, Methyl 2-(2-methylphenyl)-2-oxoacetate, Methyl 3-phenylpropanoate.
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 chlorooxoacetate (CAS 5781-53-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-15230-7 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.