4-Ethylbenzaldehyde
Also known as: Benzaldehyde, 4-ethyl-, p-Ethylbenzaldehyde, para-Ethylbenzaldehyde, Benzaldehyde, p-ethyl-, 4-EtC6H4CHO, FEMA 3756, Ebal, Ethyl-benzaldehyde
4-Ethylbenzaldehyde (CAS 4748-78-1) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C9H10O and a molecular weight of 134.175 g/mol. Key properties include a boiling point of 221.7±9.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 92.2±0.0 °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.
- 4748-78-1
- Jingsj CID
- J-49629-7
- Molecular Formula
- C9H10O
- Molecular Weight
- 134.175 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 221.7±9.0 °C at 760 mmHg |
|---|---|
| Density | 1.0±0.1 g/cm3 |
| Flash Point | 92.2±0.0 °C |
| Exact Mass | 134.073166 |
| PSA | 17.07000 |
| LogP | 2.63 |
| Vapor Pressure | 0.1±0.4 mmHg at 25°C |
| Refractive Index | 1.548 |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory 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 4-Ethylbenzaldehyde?
The CAS number of 4-Ethylbenzaldehyde is 4748-78-1.
What are the molecular formula and molecular weight of 4-Ethylbenzaldehyde?
4-Ethylbenzaldehyde has molecular formula C9H10O and molecular weight 134.175 g/mol.
Is 4-Ethylbenzaldehyde hazardous?
4-Ethylbenzaldehyde 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 4-Ethylbenzaldehyde?
For 4-Ethylbenzaldehyde, Upstream Products: 4-Ethylbenzoic acid, 4-Ethynylbenzaldehyde, 4-Ethylbenzyl alcohol; Downstream Products: 1-Ethyl-4-ethynylbenzene, Benzylamine, Hexaethyldisiloxane.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "4-Ethylbenzaldehyde (CAS 4748-78-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-49629-7 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.