2-Acetoxy-2-methylpropionyl bromide
Also known as: 2-Acetoxyisobutyryl bromide, α-Acetoxyisobutyryl bromide, 1-Bromocarbonyl-1-methylethyl acetate, (1-bromo-2-methyl-1-oxopropan-2-yl) acetate, AIBB, Acetoxyisobutyric acid bromide, 1-Bromo-2-methyl-1-oxopropan-2-yl acetate
2-Acetoxy-2-methylpropionyl bromide (CAS 40635-67-4) is a compound in the Organohalogen Compounds category listed in the Jingsj chemical database. It has the molecular formula C6H9BrO3 and a molecular weight of 209.038 g/mol. Key properties include a boiling point of 190.4±0.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 72.2±22.6 °C. It is classified under GHS with signal word Danger and hazard statements H314 — Causes severe skin burns and 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.
- 40635-67-4
- Jingsj CID
- J-42271-9
- Molecular Formula
- C6H9BrO3
- Molecular Weight
- 209.038 g/mol
- Category
- Organohalogen Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 190.4±0.0 °C at 760 mmHg |
|---|---|
| Density | 1.5±0.1 g/cm3 |
| Flash Point | 72.2±22.6 °C |
| Exact Mass | 207.973495 |
| PSA | 43.37000 |
| LogP | 1.42 |
| Vapor Pressure | 0.5±0.3 mmHg at 25°C |
| Refractive Index | 1.469 |
GHS Safety & Compliance
- H314 — Causes severe skin burns and eye damage
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 2918199090 |
|---|---|
| Summary | 2918199090 other carboxylic acids with alcohol function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives。Supervision conditions:None。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-Acetoxy-2-methylpropionyl bromide?
The CAS number of 2-Acetoxy-2-methylpropionyl bromide is 40635-67-4.
What are the molecular formula and molecular weight of 2-Acetoxy-2-methylpropionyl bromide?
2-Acetoxy-2-methylpropionyl bromide has molecular formula C6H9BrO3 and molecular weight 209.038 g/mol.
Is 2-Acetoxy-2-methylpropionyl bromide hazardous?
2-Acetoxy-2-methylpropionyl bromide has GHS signal word Danger and hazard statements H314 — Causes severe skin burns and eye damage; H335 — May cause respiratory irritation.
What are the upstream and downstream products of 2-Acetoxy-2-methylpropionyl bromide?
For 2-Acetoxy-2-methylpropionyl bromide, Upstream Products: 1-Chlorocarbonyl-1-methylethyl acetate, 2-(Acetyloxy)-2-methylpropanoic acid; Downstream Products: 2',3'-O-Isopropylideneadenosine, Stavudine.
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-Acetoxy-2-methylpropionyl bromide (CAS 40635-67-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-42271-9 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.