2-Ethylhexanal
Also known as: 2-Ethylhexaldehyde, 2-Ethylhexyl Aldehyde, α-Ethylcaproaldehyde, Butylethylacetaldehyde, Ethylhexanal
2-Ethylhexanal (CAS 123-05-7) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C8H16O and a molecular weight of 128.21200 g/mol. Key properties include a melting point of -76 °C, a boiling point of 55 °C13.5 mm Hg(lit.), a density of 0.822 g/mL at 25 °C(lit.) and a flash point of 42.2 °C. It is classified under GHS with signal word Warning and hazard statements H226 — Flammable liquid and vapour, H317 — May cause an allergic skin reaction and H361 — Suspected of damaging fertility or the unborn child. No supplier offers are currently listed; request a quote. Record last updated Nov 2, 2026.
- CAS No.
- 123-05-7
- Jingsj CID
- J-13781-5
- Molecular Formula
- C8H16O
- Molecular Weight
- 128.21200 g/mol
- Category
- Organic Compounds
- Last updated
- 11/2/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | -76 °C |
|---|---|
| Boiling Point | 55 °C13.5 mm Hg(lit.) |
| Density | 0.822 g/mL at 25 °C(lit.) |
| Flash Point | 42.2 °C |
| Exact Mass | 128.12000 |
| PSA | 17.07000 |
| LogP | 2.40170 |
| Vapor Pressure | 2.11mmHg at 25°C |
| Refractive Index | n20/D 1.415(lit.) |
GHS Safety & Compliance
- H226 — Flammable liquid and vapour
- H317 — May cause an allergic skin reaction
- H361 — Suspected of damaging fertility or the unborn child
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 2-Ethylhexanal?
The CAS number of 2-Ethylhexanal is 123-05-7.
What are the molecular formula and molecular weight of 2-Ethylhexanal?
2-Ethylhexanal has molecular formula C8H16O and molecular weight 128.21200 g/mol.
Is 2-Ethylhexanal hazardous?
2-Ethylhexanal has GHS signal word Warning and hazard statements H226 — Flammable liquid and vapour; H317 — May cause an allergic skin reaction; H361 — Suspected of damaging fertility or the unborn child.
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-Ethylhexanal (CAS 123-05-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-13781-5 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.