Angelic acid
Also known as: (Z)-2-Methyl-2-butenoic acid, (Z)-2-Methylcrotonic acid, cis-2-Methyl-2-butenoic acid, cis-2,3-Dimethylacrylic acid, 2-Methylisocrotonic acid, cis-2-Methylcrotonic acid, Cis-2-methylbutenoic acid, α-Methylisocrotonic acid
Angelic acid (CAS 565-63-9) 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 100.116 g/mol. Key properties include a melting point of 44ºC, a boiling point of 198.5±0.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 95.9±9.6 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 565-63-9
- Jingsj CID
- J-1990095-9
- Molecular Formula
- C5H8O2
- Molecular Weight
- 100.116 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 44ºC |
|---|---|
| Boiling Point | 198.5±0.0 °C at 760 mmHg |
| Density | 1.0±0.1 g/cm3 |
| Flash Point | 95.9±9.6 °C |
| Exact Mass | 100.052429 |
| PSA | 37.30000 |
| LogP | 1.35 |
| Vapor Pressure | 0.2±0.7 mmHg at 25°C |
| Refractive Index | 1.451 |
Activity & Biological Data
| Additional Information | [1]. Jung-Eun Ku. Photodamage attenuation effect by angelic acid in UVA irradiation-induced damages in normal human dermal fibroblast. Biomedical Dermatologyvolume 2, Article number: 8 (2018). |
|---|
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 Angelic acid?
The CAS number of Angelic acid is 565-63-9.
What are the molecular formula and molecular weight of Angelic acid?
Angelic acid has molecular formula C5H8O2 and molecular weight 100.116 g/mol.
What are the upstream and downstream products of Angelic acid?
For Angelic acid, Upstream Products: Methyl Angelate, (Z)-2-bromo-2-butene, Schisantherin B; Downstream Products: Isovaleric acid, ch3cho, Pyruvic 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. "Angelic acid (CAS 565-63-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1990095-9 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.