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Benzenesulfonyl bromide, 3-nitro-, also known as 3-nitrobenzenesulfonyl bromide or m-nitrobenzenesulfonyl bromide, is an organic compound with the chemical formula C6H4BrNO3S. It is a derivative of benzenesulfonyl bromide, featuring a nitro group (-NO2) at the 3rd position on the benzene ring. This yellow crystalline solid is a valuable intermediate in the synthesis of various pharmaceuticals, agrochemicals, and other organic compounds. It is typically used as a reagent in chemical reactions, such as the protection of amino groups and the formation of sulfonamide derivatives. Due to its reactivity and potential hazards, it is essential to handle 3-nitrobenzenesulfonyl bromide with care, following proper safety protocols and guidelines.

1950-73-8

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1950-73-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1950-73-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,9,5 and 0 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1950-73:
(6*1)+(5*9)+(4*5)+(3*0)+(2*7)+(1*3)=88
88 % 10 = 8
So 1950-73-8 is a valid CAS Registry Number.

1950-73-8SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 19, 2017

Revision Date: Aug 19, 2017

1.Identification

1.1 GHS Product identifier

Product name 3-nitrobenzenesulfonyl bromide

1.2 Other means of identification

Product number -
Other names 3-nitro-benzenesulfonyl bromide

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:1950-73-8 SDS

1950-73-8Relevant academic research and scientific papers

Facile synthesis of sulfonyl chlorides/bromides from sulfonyl hydrazides

Chen, Rongxiang,Xu, Shaohong,Shen, Fumin,Xu, Canran,Wang, Kaikai,Wang, Zhanyong,Liu, Lantao

, (2021/09/20)

A simple and rapid method for efficient synthesis of sulfonyl chlorides/bromides from sulfonyl hydrazide with NXS (X = Cl or Br) and late-stage conversion to several other functional groups was described. A variety of nucleophiles could be engaged in this transformation, thus permitting the synthesis of complex sulfonamides and sulfonates. In most cases, these reactions are highly selective, simple, and clean, affording products at excellent yields.

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