3-Methylbutanal
异戊醛
Also known as: Isovaleraldehyde, 3-Methylbutyraldehyde, 3-methyl-butanal, 3-methylbutanal, Butanal, 3-methyl-, FEMA 2692, Isoamylaldehyde, Isopentanal, Isovaleral, Isovaleric aldehyde, β-Methylbutanal
3-Methylbutanal (CAS 590-86-3) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C5H10O and a molecular weight of 86.132 g/mol. It is also known as Isovaleraldehyde, 3-Methylbutyraldehyde and 3-methyl-butanal. Key properties include a melting point of -60 °C, a boiling point of 93.5±8.0 °C at 760 mmHg, a density of 0.8±0.1 g/cm3 and a flash point of -1.7±0.0 °C. It is classified under GHS with signal word Danger and hazard statements H225 — Highly flammable liquid and vapour, H317 — May cause an allergic skin reaction and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 590-86-3
- Jingsj CID
- J-1311029-7
- Molecular Formula
- C5H10O
- Chinese Name
- 异戊醛
- Molecular Weight
- 86.132 g/mol
- Category
- Organic Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | -60 °C |
|---|---|
| Boiling Point | 93.5±8.0 °C at 760 mmHg |
| Density | 0.8±0.1 g/cm3 |
| Flash Point | -1.7±0.0 °C |
| Exact Mass | 86.073166 |
| PSA | 17.07000 |
| LogP | 1.25 |
| Additional Property | 2.96 (vs air) |
| Vapor Pressure | 49.3±0.2 mmHg at 25°C |
| Refractive Index | 1.383 |
| Additional Property | 15 g/L (20 ºC) |
GHS Safety & Compliance
- H225 — Highly flammable liquid and vapour
- H317 — May cause an allergic skin reaction
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
- H411 — Toxic to aquatic life with long lasting effects
Customs & Trade Information
| HS Code | 2912190090 |
|---|---|
| Summary | 2912190090 acyclic aldehydes without other oxygen function。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:5.5%。General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 3-Methylbutanal?
The CAS number of 3-Methylbutanal is 590-86-3.
What are the molecular formula and molecular weight of 3-Methylbutanal?
3-Methylbutanal has molecular formula C5H10O and molecular weight 86.132 g/mol.
Is 3-Methylbutanal hazardous?
3-Methylbutanal has GHS signal word Danger and hazard statements H225 — Highly flammable liquid and vapour; H317 — May cause an allergic skin reaction; H319 — Causes serious eye irritation.
What are the upstream and downstream products of 3-Methylbutanal?
For 3-Methylbutanal, Downstream Products: 3-Methylbutanoyl chloride, ethyl (E)-5-methylhex-2-enoate, Triphenylphosphine oxide.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "3-Methylbutanal (CAS 590-86-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1311029-7 (accessed 2026-10-28).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.