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Methyl 4-bromocrotonate

Also known as: Methyl bromocrotonate, Methyl 4-bromobut-2-enoate, Methyl (E)-4-bromobut-2-enoate, Methyl trans-4-bromocrotonate, 4-Bromocrotonic acid methyl ester, Methyl γ-bromocrotonate, trans-4-Bromo-2-butenoic Acid Methyl Ester, 2-Butenoic acid, 4-bromo-, methyl ester, Methyl 4-bromo-2-butenoate

Methyl 4-bromocrotonate (CAS 1117-71-1) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C5H7BrO2 and a molecular weight of 179.012 g/mol. Key properties include a boiling point of 198.5±0.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 67.4±22.6 °C. It is classified under GHS with signal word Danger and hazard statements H315 — Causes skin irritation, H318 — Causes serious 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.
1117-71-1
Jingsj CID
J-1494852-8
Molecular Formula
C5H7BrO2
Molecular Weight
179.012 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point198.5±0.0 °C at 760 mmHg
Density1.5±0.1 g/cm3
Flash Point67.4±22.6 °C
Exact Mass177.962936
PSA26.30000
LogP1.63
Vapor Pressure0.4±0.3 mmHg at 25°C
Refractive Index1.485

GHS Safety & Compliance

Corrosion / IrritantSignal word: Danger
  • H315 — Causes skin irritation
  • H318 — Causes serious eye damage
  • H335 — May cause respiratory 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 Methyl 4-bromocrotonate?

The CAS number of Methyl 4-bromocrotonate is 1117-71-1.

What are the molecular formula and molecular weight of Methyl 4-bromocrotonate?

Methyl 4-bromocrotonate has molecular formula C5H7BrO2 and molecular weight 179.012 g/mol.

Is Methyl 4-bromocrotonate hazardous?

Methyl 4-bromocrotonate has GHS signal word Danger and hazard statements H315 — Causes skin irritation; H318 — Causes serious eye damage; H335 — May cause respiratory irritation.

What are the upstream and downstream products of Methyl 4-bromocrotonate?

For Methyl 4-bromocrotonate, Upstream Products: Methyl crotonate, (E)-2-Butenoic acid, Methyl DL-2-Hydroxy-3-butenoate; Downstream Products: Methyl crotonate, Methyl 3-butenoate, methyl (2E,4Z)-2,4-decadienoate.

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 4-bromocrotonate (CAS 1117-71-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1494852-8 (accessed 2026-11-09).

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