5-Methyl-2-phenyl-2-hexenal
Also known as: Cocal, 2-Phenyl-5-methyl-2-hexenal, alpha-(3-methylbutylidene)-Benzeneacetaldehyde, 5-Methyl-2-phenylhex-2-enal, FEMA 3199
5-Methyl-2-phenyl-2-hexenal (CAS 21834-92-4) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C13H16O and a molecular weight of 188.266 g/mol. Key properties include a boiling point of 310.8±12.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 123.8±14.9 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 21834-92-4
- Jingsj CID
- J-30805-6
- Molecular Formula
- C13H16O
- Molecular Weight
- 188.266 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 310.8±12.0 °C at 760 mmHg |
|---|---|
| Density | 1.0±0.1 g/cm3 |
| Flash Point | 123.8±14.9 °C |
| Exact Mass | 188.120117 |
| PSA | 17.07000 |
| LogP | 4.09 |
| Additional Property | >1 (vs air) |
| Vapor Pressure | 0.0±0.7 mmHg at 25°C |
| Refractive Index | 1.514 |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
Customs & Trade Information
| HS Code | 2912299000 |
|---|---|
| Summary | 2912299000. other cyclic aldehydes without other oxygen function. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:5.5%. General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 5-Methyl-2-phenyl-2-hexenal?
The CAS number of 5-Methyl-2-phenyl-2-hexenal is 21834-92-4.
What are the molecular formula and molecular weight of 5-Methyl-2-phenyl-2-hexenal?
5-Methyl-2-phenyl-2-hexenal has molecular formula C13H16O and molecular weight 188.266 g/mol.
Is 5-Methyl-2-phenyl-2-hexenal hazardous?
5-Methyl-2-phenyl-2-hexenal has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation.
What are the upstream and downstream products of 5-Methyl-2-phenyl-2-hexenal?
For 5-Methyl-2-phenyl-2-hexenal, Upstream Products: 2,2-Diethoxyacetophenone, Isoamyltriphenylphosphonium bromide.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "5-Methyl-2-phenyl-2-hexenal (CAS 21834-92-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-30805-6 (accessed 2026-11-07).
Data for reference only; verify product details with suppliers before purchase.