2-Methylbut-3-enoic acid
Also known as: 2-Methyl-3-butenoic acid, 2-methylbut-3-enoic acid, 2-methyl-3-butenenoic acid, 2-vinylpropionic acid, 3-Butenoic acid, 2-methyl-, CH2=CHCH(CH3)COOH
2-Methylbut-3-enoic acid (CAS 53774-20-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C5H8O2 and a molecular weight of 100.11600 g/mol. Key properties include a boiling point of 42-43ºC/0.1 mmHg(lit.), a density of 0.968 g/mL at 20ºC and a flash point of 76ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 53774-20-2
- Jingsj CID
- J-8044-4
- Molecular Formula
- C5H8O2
- Molecular Weight
- 100.11600 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 42-43ºC/0.1 mmHg(lit.) |
|---|---|
| Density | 0.968 g/mL at 20ºC |
| Flash Point | 76ºC |
| Exact Mass | 100.05200 |
| PSA | 37.30000 |
| LogP | 0.89310 |
| Refractive Index | n20/D 1.424 |
Customs & Trade Information
| HS Code | 2916190090 |
|---|---|
| Summary | 2916190090 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 2-Methylbut-3-enoic acid?
The CAS number of 2-Methylbut-3-enoic acid is 53774-20-2.
What are the molecular formula and molecular weight of 2-Methylbut-3-enoic acid?
2-Methylbut-3-enoic acid has molecular formula C5H8O2 and molecular weight 100.11600 g/mol.
What are the upstream and downstream products of 2-Methylbut-3-enoic acid?
For 2-Methylbut-3-enoic acid, Upstream Products: 3-Chloro-1-butene, Carbon dioxide, (E)-2-(But-2-en-1-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane; Downstream Products: 2-Methyl-3-buten-1-ol, Tiglic acid, 2-Methylbutanoic 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. "2-Methylbut-3-enoic acid (CAS 53774-20-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-8044-4 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.