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201857-39-8 Usage


4-AMINO-3-BROMO-5-CHLOROBENZONITRILE is a chemical compound characterized by its molecular formula C7H3BrClN2. It exists as a crystalline solid and is predominantly utilized in the synthesis of pharmaceuticals and agrochemicals. Additionally, it serves as an intermediate in the production of dyes and pigments. Due to its hazardous nature, which includes potential skin and eye irritation and harmful effects if ingested or inhaled, it is crucial to handle this chemical with care and adhere to proper safety measures.


Used in Pharmaceutical Industry:
4-AMINO-3-BROMO-5-CHLOROBENZONITRILE is used as a key intermediate in the synthesis of various pharmaceutical compounds. Its unique structure allows for the development of new drugs with specific therapeutic properties.
Used in Agrochemical Industry:
In the agrochemical sector, 4-AMINO-3-BROMO-5-CHLOROBENZONITRILE is employed as a precursor in the production of pesticides and other agrochemicals, contributing to the development of effective solutions for crop protection and management.
Used in Dye and Pigment Production:
4-AMINO-3-BROMO-5-CHLOROBENZONITRILE is utilized as an intermediate in the manufacturing process of dyes and pigments, enabling the creation of a wide range of colorants for various applications, including textiles, plastics, and printing inks.

Check Digit Verification of cas no

The CAS Registry Mumber 201857-39-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,1,8,5 and 7 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 201857-39:
118 % 10 = 8
So 201857-39-8 is a valid CAS Registry Number.



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


1.1 GHS Product identifier


1.2 Other means of identification

Product number -
Other names 3-chloro-4-amino-5-bromobenzonitrile

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:201857-39-8 SDS

201857-39-8Downstream Products

201857-39-8Relevant articles and documents

Aminoacetamide acyl guanidines as beta-secretase inhibitors


Page/Page column 19, (2008/06/13)

There is provided a series of substituted acyl guanidines of Formula (Ik) or a stereoisomer; or a pharmaceutically acceptable salt thereof, wherein R2, R3, R4, R5, R25, R26 and R27 as defined herein, their pharmaceutical compositions and methods of use. These compounds inhibit the processing of amyloid precursor protein (APP) by β-secretase and, more specifically, inhibit the production of Aβ-peptide. The present disclosure is directed to compounds useful in the treatment of neurological disorders related to β-amyloid production, such as Alzheimer's disease and other conditions affected by anti-amyloid activity.

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