4-Acetamidothiophenol
Also known as: 4-Acetamidobenzenethiol, 4-Mercaptoacetanilide, 4'-Mercaptoacetanilide, N-(4-Mercaptophenyl)acetamide, N-(4-Sulfanylphenyl)acetamide, 4-Acetamido thiophenol, 4-Acetylaminothiophenol, 4-Acetaminothiophenol, p-Acetamidothiophenol, p-Mercaptoacetanilide, 4'-Thioacetanilide, Acetamide, N-(4-mercaptophenyl)-, Acetanilide, 4'-mercapto-
4-Acetamidothiophenol (CAS 1126-81-4) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C8H9NOS and a molecular weight of 167.228 g/mol. Key properties include a melting point of 150-153 °C(lit.), a boiling point of 367.1±25.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 175.8±23.2 °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.
- 1126-81-4
- Jingsj CID
- J-1990800-0
- Molecular Formula
- C8H9NOS
- Molecular Weight
- 167.228 g/mol
- Category
- Alcohols
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 150-153 °C(lit.) |
|---|---|
| Boiling Point | 367.1±25.0 °C at 760 mmHg |
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 175.8±23.2 °C |
| Exact Mass | 167.040482 |
| PSA | 67.90000 |
| LogP | 1.28 |
| Vapor Pressure | 0.0±0.8 mmHg at 25°C |
| Refractive Index | 1.640 |
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-Acetamidothiophenol?
The CAS number of 4-Acetamidothiophenol is 1126-81-4.
What are the molecular formula and molecular weight of 4-Acetamidothiophenol?
4-Acetamidothiophenol has molecular formula C8H9NOS and molecular weight 167.228 g/mol.
Is 4-Acetamidothiophenol hazardous?
4-Acetamidothiophenol 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-Acetamidothiophenol?
For 4-Acetamidothiophenol, Upstream Products: 4'-Iodoacetanilide, N,N'-(dithiodi-4,1-phenylene)bisacetamide, acetic acid; Downstream Products: 4-Nitrothiophenol, N-[4-(4-nitro-2-sulfamoylphenyl)sulfonylphenyl]acetamide, 4-Acetamidobenzenesulfinic 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-Acetamidothiophenol (CAS 1126-81-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1990800-0 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.