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N,N-Dichloro-p-toluenesulfonamide

Also known as: Dichloramine-T, Dichloramine T, Peraktivin, N,N-Dichloro-4-methylbenzenesulfonamide, N,N-Dichloro-p-toluenesulfonamide, N,N-Dichloro-p-toluolsulfonamide, p-Toluenesulfondichloramide, p-Toluenesulfonic Acid Dichloramide, Benzenesulfonamide, N,N-dichloro-4-methyl-, Benzyl p-sulfondichloramide, P-TOLUENESULFONDICHLORAMIDE

N,N-Dichloro-p-toluenesulfonamide (CAS 473-34-7) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C7H7Cl2NO2S and a molecular weight of 240.11 g/mol. Key properties include a melting point of 79ºC, a boiling point of 330.0±35.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 153.4±25.9 °C. It is classified under GHS with signal word Danger and hazard statements H271, H315 — Causes skin irritation and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
473-34-7
Jingsj CID
J-11920-0
Molecular Formula
C7H7Cl2NO2S
Molecular Weight
240.11 g/mol
Category
Organic Bases
Last updated
8/21/2026

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Physicochemical Properties

Melting Point79ºC
Boiling Point330.0±35.0 °C at 760 mmHg
Density1.5±0.1 g/cm3
Flash Point153.4±25.9 °C
Exact Mass238.957458
PSA45.76000
LogP3.24
Vapor Pressure0.0±0.7 mmHg at 25°C
Refractive Index1.582

GHS Safety & Compliance

Oxidising / IrritantSignal word: Danger
  • H271
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

Activity & Biological Data

Additional Information[1]. Jacob TJ, et al. Dichloramine-T as a new oxidimetric titrant in non-aqueous and partially aqueous media. Talanta. 1972 Mar;19(3):347-51. [2]. Tosetti C, et al. Dental composition for root canal treatment comprising disinfecting solution and a thixotropic substance. European Patent Organization, EP1810655 A2 2007-07-25.

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 N,N-Dichloro-p-toluenesulfonamide?

The CAS number of N,N-Dichloro-p-toluenesulfonamide is 473-34-7.

What are the molecular formula and molecular weight of N,N-Dichloro-p-toluenesulfonamide?

N,N-Dichloro-p-toluenesulfonamide has molecular formula C7H7Cl2NO2S and molecular weight 240.11 g/mol.

Is N,N-Dichloro-p-toluenesulfonamide hazardous?

N,N-Dichloro-p-toluenesulfonamide has GHS signal word Danger and hazard statements H271; H315 — Causes skin irritation; H319 — Causes serious eye irritation.

What are the upstream and downstream products of N,N-Dichloro-p-toluenesulfonamide?

For N,N-Dichloro-p-toluenesulfonamide, Upstream Products: p-Toluenesulfonamide, Chloramine-T; Downstream Products: 5-Chlorosalicylic acid, 3-Chloro-4-methoxybenzoic acid, 4-Bromo-2-chloro-1-methoxybenzene.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "N,N-Dichloro-p-toluenesulfonamide (CAS 473-34-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-11920-0 (accessed 2026-11-09).

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