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Methyl 2-bromo-2-methylpropanoate

Also known as: Methyl 2-bromo-2-methylpropionate, Methyl 2-bromoisobutyrate, alpha-Bromoisobutyric acid methyl ester, Methyl α-bromoisobutyrate, 2-Bromo-2-methylpropionic acid methyl ester, Methyl 2-bromo-isobutyrate, Methyl-2-bromo-isobutyric acid, Propanoic acid, 2-bromo-2-methyl-, methyl ester

Methyl 2-bromo-2-methylpropanoate (CAS 23426-63-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C5H9BrO2 and a molecular weight of 181.028 g/mol. Key properties include a boiling point of 145.8±8.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 46.9±11.9 °C. It is classified under GHS with signal word Warning and hazard statements H226 — Flammable liquid and vapour, H315 — Causes skin irritation and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
23426-63-3
Jingsj CID
J-1035595-0
Molecular Formula
C5H9BrO2
Molecular Weight
181.028 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point145.8±8.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point46.9±11.9 °C
Exact Mass179.978592
PSA26.30000
LogP1.53
Vapor Pressure4.8±0.3 mmHg at 25°C
Refractive Index1.455

GHS Safety & Compliance

Flammable / IrritantSignal word: Warning
  • H226 — Flammable liquid and vapour
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • 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-bromo-2-methylpropanoate?

The CAS number of Methyl 2-bromo-2-methylpropanoate is 23426-63-3.

What are the molecular formula and molecular weight of Methyl 2-bromo-2-methylpropanoate?

Methyl 2-bromo-2-methylpropanoate has molecular formula C5H9BrO2 and molecular weight 181.028 g/mol.

Is Methyl 2-bromo-2-methylpropanoate hazardous?

Methyl 2-bromo-2-methylpropanoate has GHS signal word Warning and hazard statements H226 — Flammable liquid and vapour; H315 — Causes skin irritation; H319 — Causes serious eye irritation.

What are the upstream and downstream products of Methyl 2-bromo-2-methylpropanoate?

For Methyl 2-bromo-2-methylpropanoate, Upstream Products: Isobutyric acid, Methyl isobutyrate, 1,2-Dibromoethane; Downstream Products: Methyl 2,2-dimethylacetoacetate, 2,2-dimethylbutanoic acid, 5-methyl-4-oxohexanoic acid.

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-bromo-2-methylpropanoate (CAS 23426-63-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1035595-0 (accessed 2026-11-09).

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