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Ethyl crotonate

Also known as: Ethyl trans-2-butenoate, Crotonic acid ethyl ester, (E)-2-Butenoic acid ethyl ester, Ethyl (2E)-2-butenoate, trans-Ethyl crotonate, alpha-Crotonic acid ethyl ester, MFCD00009289, EINECS 210-808-7

Ethyl crotonate (CAS 623-70-1) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C6H10O2 and a molecular weight of 114.14200 g/mol. Key properties include a melting point of -79ºC, a boiling point of 142-143 °C(lit.), a density of 0.918 g/mL at 25 °C(lit.) and a flash point of 2.2 °C. It is classified under GHS with signal word Danger and hazard statements H225 — Highly flammable liquid and vapour and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Nov 2, 2026.

CAS No.
623-70-1
Jingsj CID
J-27744-1
Molecular Formula
C6H10O2
Molecular Weight
114.14200 g/mol
Category
Organic Acids
Last updated
11/2/2026

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Physicochemical Properties

Melting Point-79ºC
Boiling Point142-143 °C(lit.)
Density0.918 g/mL at 25 °C(lit.)
Flash Point2.2 °C
Exact Mass114.06800
PSA26.30000
LogP1.12560
Additional Property3.9 (vs air)
Vapor Pressure6.87mmHg at 25°C
Refractive Indexn20/D 1.424(lit.)
Additional PropertyINSOLUBLE

GHS Safety & Compliance

Flammable / IrritantSignal word: Danger
  • H225 — Highly flammable liquid and vapour
  • H319 — Causes serious eye irritation

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 Ethyl crotonate?

The CAS number of Ethyl crotonate is 623-70-1.

What are the molecular formula and molecular weight of Ethyl crotonate?

Ethyl crotonate has molecular formula C6H10O2 and molecular weight 114.14200 g/mol.

Is Ethyl crotonate hazardous?

Ethyl crotonate has GHS signal word Danger and hazard statements H225 — Highly flammable liquid and vapour; H319 — Causes serious eye irritation.

What are the upstream and downstream products of Ethyl crotonate?

For Ethyl crotonate, Upstream Products: Triethyl phosphonoacetate, ch3cho, Ethanol; Downstream Products: Ethyl 4-bromocrotonate, Ethyl 3-aminobutyrate, Hexahydro-2,4,6-trimethyl-1,3,5-triazine trihydrate.

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

Last updated:

How to cite: Jingsj. "Ethyl crotonate (CAS 623-70-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-27744-1 (accessed 2026-11-09).

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