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4-chlorobenzenecarbothioamide

Also known as: 4-Chlorothiobenzamide, p-Chlorothiobenzamide, p-Chlorobenzothiamide, 4-chlorobenzene-1-carbothioamide, 4-chlorobenzothioamide, 4-chlorophenylthiocarboxamide, NSC 179795, NSC 195318

4-chlorobenzenecarbothioamide (CAS 2521-24-6) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C7H6ClNS and a molecular weight of 171.647 g/mol. Key properties include a melting point of 127-130 °C, a boiling point of 275.6±42.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 120.5±27.9 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed and H317 — May cause an allergic skin reaction. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
2521-24-6
Jingsj CID
J-1128039-0
Molecular Formula
C7H6ClNS
Molecular Weight
171.647 g/mol
Category
Organic Bases
Last updated
8/21/2026
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Physicochemical Properties

Melting Point127-130 °C
Boiling Point275.6±42.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point120.5±27.9 °C
Exact Mass170.990952
PSA58.11000
LogP2.39
Vapor Pressure0.0±0.6 mmHg at 25°C
Refractive Index1.662

GHS Safety & Compliance

IrritantSignal word: Warning
  • H302 — Harmful if swallowed
  • H317 — May cause an allergic skin reaction

Frequently Asked Questions

What is the CAS number of 4-chlorobenzenecarbothioamide?

The CAS number of 4-chlorobenzenecarbothioamide is 2521-24-6.

What are the molecular formula and molecular weight of 4-chlorobenzenecarbothioamide?

4-chlorobenzenecarbothioamide has molecular formula C7H6ClNS and molecular weight 171.647 g/mol.

Is 4-chlorobenzenecarbothioamide hazardous?

4-chlorobenzenecarbothioamide has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H317 — May cause an allergic skin reaction.

What are the upstream and downstream products of 4-chlorobenzenecarbothioamide?

For 4-chlorobenzenecarbothioamide, Upstream Products: 4-Chlorobenzaldehyde, 4-Chlorobenzamide, 4-Chlorobenzonitrile; Downstream Products: Methyl 2-(4-chlorophenyl)-4-methyl-1,3-thiazole-5-carboxylate, 4-Chlorobenzonitrile, 2-(4-Chlorophenyl)propan-2-amine.

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-chlorobenzenecarbothioamide (CAS 2521-24-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1128039-0 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.