4'-Methylthioacetophenone
Also known as: 1-[4-(methylthio)phenyl]ethan-1-one, 1-(4-methylsulfanylphenyl)ethanone, 4-(Acetyl)thioanisole, 4-Methylmercaptoacetophenone, p-Methylthioacetophenone, 4'-(Methylthio)acetophenone, 1-Acetyl-4-(methylthio)benzene, Methyl 4-acetylphenyl sulfide, 4-Thiomethylacetophenone
4'-Methylthioacetophenone (CAS 1778-09-2) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C9H10OS and a molecular weight of 166.240 g/mol. Key properties include a melting point of 80-82 °C(lit.), a boiling point of 282.5±23.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 140.7±8.3 °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.
- 1778-09-2
- Jingsj CID
- J-47840-0
- Molecular Formula
- C9H10OS
- Molecular Weight
- 166.240 g/mol
- Category
- Ketones
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 80-82 °C(lit.) |
|---|---|
| Boiling Point | 282.5±23.0 °C at 760 mmHg |
| Density | 1.1±0.1 g/cm3 |
| Flash Point | 140.7±8.3 °C |
| Exact Mass | 166.045242 |
| PSA | 42.37000 |
| LogP | 2.51 |
| Vapor Pressure | 0.0±0.6 mmHg at 25°C |
| Refractive Index | 1.563 |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 2930909090 |
|---|---|
| Summary | 2930909090. other organo-sulphur compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 4'-Methylthioacetophenone?
The CAS number of 4'-Methylthioacetophenone is 1778-09-2.
What are the molecular formula and molecular weight of 4'-Methylthioacetophenone?
4'-Methylthioacetophenone has molecular formula C9H10OS and molecular weight 166.240 g/mol.
Is 4'-Methylthioacetophenone hazardous?
4'-Methylthioacetophenone 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'-Methylthioacetophenone?
For 4'-Methylthioacetophenone, Upstream Products: Thioanisole, Acetyl chloride, 4-(Methylthio)benzonitrile; Downstream Products: 4-Methylsulfonylbenzoic acid, 4-(Methylthio)benzaldehyde, 4-(Methylsulfonyl)phenylacetic 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'-Methylthioacetophenone (CAS 1778-09-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-47840-0 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.