Ethyl 3-methyl-2-butenoate
Also known as: 3,3-dimethylacrylic acid ethyl ester, Ethyl 3,3-dimethylacrylate, 2-Butenoic acid, 3-methyl-, ethyl ester, ethyl 3-methylbut-2-enoate, EINECS 211-319-1, MFCD00009187
Ethyl 3-methyl-2-butenoate (CAS 638-10-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C7H12O2 and a molecular weight of 128.169 g/mol. Key properties include a boiling point of 153.5±0.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of 33.9±0.0 °C. It is classified under GHS with signal word Warning and hazard statements H226 — Flammable liquid and vapour. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 638-10-8
- Jingsj CID
- J-1323779-1
- Molecular Formula
- C7H12O2
- Molecular Weight
- 128.169 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 153.5±0.0 °C at 760 mmHg |
|---|---|
| Density | 0.9±0.1 g/cm3 |
| Flash Point | 33.9±0.0 °C |
| Exact Mass | 128.083725 |
| PSA | 26.30000 |
| LogP | 2.40 |
| Vapor Pressure | 3.3±0.2 mmHg at 25°C |
| Refractive Index | 1.426 |
GHS Safety & Compliance
- H226 — Flammable liquid and vapour
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 Ethyl 3-methyl-2-butenoate?
The CAS number of Ethyl 3-methyl-2-butenoate is 638-10-8.
What are the molecular formula and molecular weight of Ethyl 3-methyl-2-butenoate?
Ethyl 3-methyl-2-butenoate has molecular formula C7H12O2 and molecular weight 128.169 g/mol.
Is Ethyl 3-methyl-2-butenoate hazardous?
Ethyl 3-methyl-2-butenoate has GHS signal word Warning and hazard statements H226 — Flammable liquid and vapour.
What are the upstream and downstream products of Ethyl 3-methyl-2-butenoate?
For Ethyl 3-methyl-2-butenoate, Upstream Products: Triethyl phosphonoacetate, Ethanol, 3-Methyl-2-butenoic acid; Downstream Products: ethyl 3,3-dimethylbutanoate, Isotretinoin, cis-Jasmone.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Ethyl 3-methyl-2-butenoate (CAS 638-10-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1323779-1 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.