2-Methylbutanoyl chloride
Also known as: 2-Methylbutyryl chloride, dl-2-Methylbutyryl chloride, Butanoyl chloride, 2-methyl-, 2-Methylbutyroyl chloride, 2-Ethylpropanoyl chloride, 2-Methylbutanoic acid chloride
2-Methylbutanoyl chloride (CAS 5856-79-1) 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. Key properties include a boiling point of 117-121ºC(lit.), a density of 0.972 g/mL at 25ºC(lit.) and a flash point of 20.0 °C. No supplier offers are currently listed; request a quote. Record last updated Nov 2, 2026.
- CAS No.
- 5856-79-1
- Jingsj CID
- J-1990922-9
- Molecular Formula
- C5H9ClO
- Molecular Weight
- 120.57700 g/mol
- Category
- Organohalogen Compounds
- Last updated
- 11/2/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 117-121ºC(lit.) |
|---|---|
| Density | 0.972 g/mL at 25ºC(lit.) |
| Flash Point | 20.0 °C |
| Exact Mass | 120.03400 |
| PSA | 17.07000 |
| LogP | 1.79790 |
| Refractive Index | n20/D 1.418(lit.) |
Frequently Asked Questions
What is the CAS number of 2-Methylbutanoyl chloride?
The CAS number of 2-Methylbutanoyl chloride is 5856-79-1.
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.
What are the upstream and downstream products of 2-Methylbutanoyl chloride?
For 2-Methylbutanoyl chloride, Upstream Products: 2-Methylbutanoic acid, Thionyl chloride, Benzoyl chloride; Downstream Products: (S)-1-Bromo-2-methylbutane, S-Methyl 2-methylthiobutyrate, 3-METHYL-4-OCTANONE.
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-Methylbutanoyl chloride (CAS 5856-79-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1990922-9 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.