Phenylacetaldehyde
Also known as: 2-Phenylacetaldehyde, 2-Phenylethanal, Hyacinthin, α-Tolualdehyde, α-Toluic aldehyde, α-Toluylaldehyde, α-Tolyaldehyde, Benzeneacetaldehyde, Benzenacetaldehyde, Phenacetaldehyde, Phenylethanal, Phenylacetic aldehyde
Phenylacetaldehyde (CAS 122-78-1) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C8H8O and a molecular weight of 120.148 g/mol. Key properties include a melting point of −10 °C(lit.), a boiling point of 198.0±9.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 89.2±10.2 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed, 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.
- 122-78-1
- Jingsj CID
- J-32875-5
- Molecular Formula
- C8H8O
- Molecular Weight
- 120.148 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | −10 °C(lit.) |
|---|---|
| Boiling Point | 198.0±9.0 °C at 760 mmHg |
| Density | 1.0±0.1 g/cm3 |
| Flash Point | 89.2±10.2 °C |
| Exact Mass | 120.057518 |
| PSA | 17.07000 |
| LogP | 1.78 |
| Vapor Pressure | 0.4±0.4 mmHg at 25°C |
| Refractive Index | 1.514 |
| Additional Property | 2.210 g/L (25 ºC) |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- 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 Phenylacetaldehyde?
The CAS number of Phenylacetaldehyde is 122-78-1.
What are the molecular formula and molecular weight of Phenylacetaldehyde?
Phenylacetaldehyde has molecular formula C8H8O and molecular weight 120.148 g/mol.
Is Phenylacetaldehyde hazardous?
Phenylacetaldehyde has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H315 — Causes skin irritation; H319 — Causes serious eye irritation.
What are the upstream and downstream products of Phenylacetaldehyde?
For Phenylacetaldehyde, Upstream Products: Benzyl bromide, Phenethyl alcohol, Styrene oxide; Downstream Products: 3-Methyl-5-phenylpyridine, 2-Methyl-5-phenylpyridine, 2-Methyl-6-phenylpyridine.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Phenylacetaldehyde (CAS 122-78-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-32875-5 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.