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Methyl 2,2-dichloropropanoate

Also known as: Dalapon methyl ester, DALAPON-METHYL ESTER, DALAPON-METHYL, DALAPONE-METHYL, METHYL-2,2-DICHLOROPROPIONATE, 2,2-Dichloropropionic acid methyl ester, Dalapon-methyl, Methyl 2,2-dichloropropionate, Dalapon methyl ester standard, MFCD00144041, Propanoic acid, 2,2-dichloro-, methyl ester, Propionic acid, 2,2-dichloro-, methyl ester

Methyl 2,2-dichloropropanoate (CAS 17640-02-7) is a compound in the Esters category listed in the Jingsj chemical database. It has the molecular formula C4H6Cl2O2 and a molecular weight of 156.995 g/mol. Key properties include a boiling point of 143.5±20.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 50.5±20.8 °C. It is classified under GHS with signal word Danger and hazard statements H226 — Flammable liquid and vapour, H302 — Harmful if swallowed and H315 — Causes skin irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
17640-02-7
Jingsj CID
J-26273-0
Molecular Formula
C4H6Cl2O2
Molecular Weight
156.995 g/mol
Category
Esters
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point143.5±20.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point50.5±20.8 °C
Exact Mass155.974487
PSA26.30000
LogP1.34
Vapor Pressure5.3±0.3 mmHg at 25°C
Refractive Index1.443
Storage Conditions0-6°C

GHS Safety & Compliance

Flammable / Corrosion / IrritantSignal word: Danger
  • H226 — Flammable liquid and vapour
  • H302 — Harmful if swallowed
  • H315 — Causes skin irritation
  • H318 — Causes serious eye damage
  • H335 — May cause respiratory irritation

Customs & Trade Information

HS Code2915900090
Summary2915900090 other saturated acyclic monocarboxylic acids and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives VAT:17.0% Tax rebate rate:9.0% Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward) MFN tariff:5.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of Methyl 2,2-dichloropropanoate?

The CAS number of Methyl 2,2-dichloropropanoate is 17640-02-7.

What are the molecular formula and molecular weight of Methyl 2,2-dichloropropanoate?

Methyl 2,2-dichloropropanoate has molecular formula C4H6Cl2O2 and molecular weight 156.995 g/mol.

Is Methyl 2,2-dichloropropanoate hazardous?

Methyl 2,2-dichloropropanoate has GHS signal word Danger and hazard statements H226 — Flammable liquid and vapour; H302 — Harmful if swallowed; H315 — Causes skin irritation.

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 2,2-dichloropropanoate (CAS 17640-02-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-26273-0 (accessed 2026-11-07).

Data for reference only; verify product details with suppliers before purchase.