4'-Methylacetophenone
Also known as: 1-(4-Methylphenyl)ethanone, 1-(p-Tolyl)ethanone, 1-Acetyl-4-methylbenzene, 4-Acetyltoluene, 4-Methylacetophenone, Methyl p-tolyl ketone, p-Acetotoluene, p-Acetyltoluene, p-Methyl acetophenone, p-Methylacetophenone, Ethanone, 1-(4-methylphenyl)-
4'-Methylacetophenone (CAS 122-00-9) is a compound in the Ketones 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 melting point of 45-49 °C(lit.), a boiling point of 211.0±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 H302 — Harmful if swallowed and H315 — Causes skin irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 122-00-9
- Jingsj CID
- J-48018-2
- Molecular Formula
- C9H10O
- Molecular Weight
- 134.175 g/mol
- Category
- Ketones
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 45-49 °C(lit.) |
|---|---|
| Boiling Point | 211.0±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 | 2.13 |
| Vapor Pressure | 0.2±0.4 mmHg at 25°C |
| Refractive Index | 1.511 |
| Additional Property | 0.37 g/L (15 ºC) |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H315 — Causes skin irritation
Activity & Biological Data
| Additional Information | [1]. Api AM, et al. RIFM fragrance ingredient safety assessment, 4'-methylacetophenone, CAS Registry Number 122-00-9. Food Chem Toxicol. 2018 Dec;122 Suppl 1:S75-S83. |
|---|
Customs & Trade Information
| HS Code | 2914399090 |
|---|---|
| Summary | 2914399090. other aromatic ketones 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'-Methylacetophenone?
The CAS number of 4'-Methylacetophenone is 122-00-9.
What are the molecular formula and molecular weight of 4'-Methylacetophenone?
4'-Methylacetophenone has molecular formula C9H10O and molecular weight 134.175 g/mol.
Is 4'-Methylacetophenone hazardous?
4'-Methylacetophenone has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H315 — Causes skin irritation.
What are the upstream and downstream products of 4'-Methylacetophenone?
For 4'-Methylacetophenone, Upstream Products: 4-Methylstyrene, 1-(4-Methylphenyl)ethanol, 4-Ethynyltoluene; Downstream Products: 2-(4-methylphenyl)-2-oxoacetaldehyde, 3-(1-phenyl-3-p-tolyl-1H-pyrazol-4-yl)acrylic acid, 5-(4-methylphenyl)isoxazole-3-carboxylic acid.
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'-Methylacetophenone (CAS 122-00-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-48018-2 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.