2-Methylbutanoyl chloride
2-甲基丁酰氯
Also known as: DL-2-Methylbutyryl chloride, 2-Methylbutyryl chloride, Butanoyl chloride, 2-methyl-, (RS)-2-Methylbutyryl chloride, 2-Ethylpropanoyl chloride, Ethylmethylacetylchloride
2-Methylbutanoyl chloride (CAS 57526-28-0) is a compound in the Organohalogen Compounds category listed in the Jingsj chemical database. It has the molecular formula C5H9ClO and a molecular weight of 120.57700 g/mol. It is also known as DL-2-Methylbutyryl chloride, 2-Methylbutyryl chloride and Butanoyl chloride, 2-methyl-. Key properties include a boiling point of 116-118ºC, a density of 0.98 and a flash point of 38ºC. It is classified under GHS with signal word Danger and hazard statements H225 — Highly flammable liquid and vapour and H314 — Causes severe skin burns and eye damage. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 57526-28-0
- Jingsj CID
- J-874420-5
- Molecular Formula
- C5H9ClO
- Chinese Name
- 2-甲基丁酰氯
- Molecular Weight
- 120.57700 g/mol
- Category
- Organohalogen Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 116-118ºC |
|---|---|
| Density | 0.98 |
| Flash Point | 38ºC |
| Exact Mass | 120.03400 |
| PSA | 17.07000 |
| LogP | 1.79790 |
| Refractive Index | 1.416-1.418 |
| Additional Property | Reacts with water. |
GHS Safety & Compliance
- H225 — Highly flammable liquid and vapour
- H314 — Causes severe skin burns and eye damage
Customs & Trade Information
| HS Code | 2915900090 |
|---|---|
| Summary | 2915900090 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 2-Methylbutanoyl chloride?
The CAS number of 2-Methylbutanoyl chloride is 57526-28-0.
What are the molecular formula and molecular weight of 2-Methylbutanoyl chloride?
2-Methylbutanoyl chloride has molecular formula C5H9ClO and molecular weight 120.57700 g/mol.
Is 2-Methylbutanoyl chloride hazardous?
2-Methylbutanoyl chloride has GHS signal word Danger and hazard statements H225 — Highly flammable liquid and vapour; H314 — Causes severe skin burns and eye damage.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "2-Methylbutanoyl chloride (CAS 57526-28-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-874420-5 (accessed 2026-10-28).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.