(E,E)-2,4-Dodecadienal
(E,E)-2,4-十二碳二烯醛
Also known as: trans,trans-2,4-Dodecadienal, (2E,4E)-Dodeca-2,4-dienal, trans,trans-2,4-Dodecadien-1-al, 2,4-Dodecadienal, 2E,4E-Dodecadienal, MFCD00014678, EINECS 244-517-1
(E,E)-2,4-Dodecadienal (CAS 21662-16-8) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C12H20O and a molecular weight of 180.28700 g/mol. It is also known as trans,trans-2,4-Dodecadienal, (2E,4E)-Dodeca-2,4-dienal and trans,trans-2,4-Dodecadien-1-al. Key properties include a boiling point of 130°C 6mm, a density of 0.865 g/mL at 20 °C(lit.) and a flash point of 104°C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 21662-16-8
- Jingsj CID
- J-38960-6
- Molecular Formula
- C12H20O
- Chinese Name
- (E,E)-2,4-十二碳二烯醛
- Molecular Weight
- 180.28700 g/mol
- Category
- Aliphatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 130°C 6mm |
|---|---|
| Density | 0.865 g/mL at 20 °C(lit.) |
| Flash Point | 104°C |
| Exact Mass | 180.15100 |
| PSA | 17.07000 |
| LogP | 3.65820 |
| Vapor Pressure | 0.00538mmHg at 25°C |
| Refractive Index | n20/D 1.510 |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Frequently Asked Questions
What is the CAS number of (E,E)-2,4-Dodecadienal?
The CAS number of (E,E)-2,4-Dodecadienal is 21662-16-8.
What are the molecular formula and molecular weight of (E,E)-2,4-Dodecadienal?
(E,E)-2,4-Dodecadienal has molecular formula C12H20O and molecular weight 180.28700 g/mol.
Is (E,E)-2,4-Dodecadienal hazardous?
(E,E)-2,4-Dodecadienal has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.
What are the upstream and downstream products of (E,E)-2,4-Dodecadienal?
For (E,E)-2,4-Dodecadienal, Upstream Products: (2E,4E)-2,4-dodecadien-1-ol, Cyclohexylamine, Octanal.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "(E,E)-2,4-Dodecadienal (CAS 21662-16-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-38960-6 (accessed 2026-10-28).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.