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2-Ethylacryloyl chloride

Also known as: 2-Methylenebutanoyl chloride, Ethacryloyl chloride, alpha-Ethylacryloyl chloride, Butanoyl chloride, 2-methylene-, 2-Methylenebutyryl chloride, alpha-Ethylacrylic acid chloride

2-Ethylacryloyl chloride (CAS 4390-96-9) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C5H7ClO and a molecular weight of 118.56100 g/mol. Key properties include a boiling point of 118-126ºC(lit.), a density of 1.116 g/mL at 25ºC(lit.) and a flash point of 17.2 °C. It is classified under GHS with signal word Danger and hazard statements H225 — Highly flammable liquid and vapour, H314 — Causes severe skin burns and eye damage and H331 — Toxic if inhaled. No supplier offers are currently listed; request a quote. Record last updated Nov 2, 2026.

CAS No.
4390-96-9
Jingsj CID
J-44258-0
Molecular Formula
C5H7ClO
Molecular Weight
118.56100 g/mol
Category
Aliphatic Hydrocarbons
Last updated
11/2/2026

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Physicochemical Properties

Boiling Point118-126ºC(lit.)
Density1.116 g/mL at 25ºC(lit.)
Flash Point17.2 °C
Exact Mass118.01900
PSA17.07000
LogP1.71800
Refractive Indexn20/D 1.444(lit.)

GHS Safety & Compliance

Flammable / Corrosion / Acute ToxicitySignal word: Danger
  • H225 — Highly flammable liquid and vapour
  • H314 — Causes severe skin burns and eye damage
  • H331 — Toxic if inhaled

Customs & Trade Information

HS Code2916190090
Summary2916190090 unsaturated acyclic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives。supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward)。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 2-Ethylacryloyl chloride?

The CAS number of 2-Ethylacryloyl chloride is 4390-96-9.

What are the molecular formula and molecular weight of 2-Ethylacryloyl chloride?

2-Ethylacryloyl chloride has molecular formula C5H7ClO and molecular weight 118.56100 g/mol.

Is 2-Ethylacryloyl chloride hazardous?

2-Ethylacryloyl chloride has GHS signal word Danger and hazard statements H225 — Highly flammable liquid and vapour; H314 — Causes severe skin burns and eye damage; H331 — Toxic if inhaled.

What are the upstream and downstream products of 2-Ethylacryloyl chloride?

For 2-Ethylacryloyl chloride, Upstream Products: Butanoic acid, 2-methylene-, Formaldehyde, Ethylmalonic acid; Downstream Products: Ethyl 2-methylenebutanoate.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "2-Ethylacryloyl chloride (CAS 4390-96-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-44258-0 (accessed 2026-11-09).

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