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2-Bromobenzenesulfonyl chloride

Also known as: 2-Bromobenzenesulphonyl chloride, o-Bromobenzenesulfonyl chloride, 2-Bromophenylsulfonyl chloride, 2-Bromobenzene-1-sulfonyl chloride, MFCD00051971

2-Bromobenzenesulfonyl chloride (CAS 2905-25-1) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C6H4BrClO2S and a molecular weight of 255.517 g/mol. Key properties include a melting point of 49-52 °C(lit.), a boiling point of 312.4±25.0 °C at 760 mmHg, a density of 1.8±0.1 g/cm3 and a flash point of 142.7±23.2 °C. It is classified under GHS with signal word Danger and hazard statements H314 — Causes severe skin burns and eye damage. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
2905-25-1
Jingsj CID
J-45473-9
Molecular Formula
C6H4BrClO2S
Molecular Weight
255.517 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point49-52 °C(lit.)
Boiling Point312.4±25.0 °C at 760 mmHg
Density1.8±0.1 g/cm3
Flash Point142.7±23.2 °C
Exact Mass253.880386
PSA42.52000
LogP2.52
Vapor Pressure0.0±0.6 mmHg at 25°C
Refractive Index1.592

GHS Safety & Compliance

CorrosionSignal word: Danger
  • H314 — Causes severe skin burns and eye damage

Customs & Trade Information

HS Code2904909090
SummaryHS:2904909090 sulphonated, nitrated or nitrosated derivatives of hydrocarbons, whether or not halogenated VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:5.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 2-Bromobenzenesulfonyl chloride?

The CAS number of 2-Bromobenzenesulfonyl chloride is 2905-25-1.

What are the molecular formula and molecular weight of 2-Bromobenzenesulfonyl chloride?

2-Bromobenzenesulfonyl chloride has molecular formula C6H4BrClO2S and molecular weight 255.517 g/mol.

Is 2-Bromobenzenesulfonyl chloride hazardous?

2-Bromobenzenesulfonyl chloride has GHS signal word Danger and hazard statements H314 — Causes severe skin burns and eye damage.

What are the upstream and downstream products of 2-Bromobenzenesulfonyl chloride?

For 2-Bromobenzenesulfonyl chloride, Upstream Products: 2-Bromoaniline, 2-Bromophenylboronic acid, Bromobenzene; Downstream Products: 2'-Sulfamoyl-[1,1'-biphenyl]-4-carboxylic acid, 2-Phenylpiperidine, 2-Bromobenzenesulfonamide.

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

Last updated:

How to cite: Jingsj. "2-Bromobenzenesulfonyl chloride (CAS 2905-25-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-45473-9 (accessed 2026-11-09).

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