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4-Chlorobenzenesulfonamide

Also known as: 4-Chlorophenylsulfonamide, p-Chlorobenzenesulfonamide, p-Chlorophenylsulfonamide, p-Chlorobenzenesulfamide, PCBS, Add 55051, NSC 9913, NSC 403674, USAF ma-3, Benzenesulfonamide, 4-chloro-, Benzenesulfonamide, p-chloro-

4-Chlorobenzenesulfonamide (CAS 98-64-6) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C6H6ClNO2S and a molecular weight of 191.635 g/mol. Key properties include a melting point of 140-144 °C(lit.), a boiling point of 342.2±44.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 160.8±28.4 °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.
98-64-6
Jingsj CID
J-1061601-0
Molecular Formula
C6H6ClNO2S
Molecular Weight
191.635 g/mol
Category
Organic Bases
Last updated
8/21/2026

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Physicochemical Properties

Melting Point140-144 °C(lit.)
Boiling Point342.2±44.0 °C at 760 mmHg
Density1.5±0.1 g/cm3
Flash Point160.8±28.4 °C
Exact Mass190.980774
PSA68.54000
LogP0.84
Vapor Pressure0.0±0.7 mmHg at 25°C
Refractive Index1.591

GHS Safety & Compliance

IrritantSignal word: Warning
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

Customs & Trade Information

HS Code2935009090
Summary2935009090 other sulphonamides VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:35.0%

Frequently Asked Questions

What is the CAS number of 4-Chlorobenzenesulfonamide?

The CAS number of 4-Chlorobenzenesulfonamide is 98-64-6.

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

4-Chlorobenzenesulfonamide has molecular formula C6H6ClNO2S and molecular weight 191.635 g/mol.

Is 4-Chlorobenzenesulfonamide hazardous?

4-Chlorobenzenesulfonamide 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-Chlorobenzenesulfonamide?

For 4-Chlorobenzenesulfonamide, Upstream Products: 4-Chlorobenzenesulfonyl chloride, Phenyl carbamate, Aqueous ammonia; Downstream Products: 4-Hydrazinobenzenesulfonamide, 4-(Trifluoromethylsulfonyl)chlorobenzene, Chlorpropamide.

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-Chlorobenzenesulfonamide (CAS 98-64-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1061601-0 (accessed 2026-11-09).

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