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Benzoic acid, 2-hydroxy-5-[(4-methylphenyl)azo]-, also known as 2-hydroxy-5-[(4-methylphenyl)azo]benzoic acid or 4-methyl-4'-hydroxyazobenzene-2-carboxylic acid, is an organic compound with the chemical formula C14H12N2O3. It is a derivative of benzoic acid, featuring a hydroxyl group at the 2-position and an azo group (-N=N-) connecting a 4-methylphenyl ring at the 5-position. Benzoic acid, 2-hydroxy-5-[(4-methylphenyl)azo]- is often used as a colorant or dye in various applications, such as in the textile and plastics industries, due to its ability to impart a vibrant color. It is also known for its potential use in the synthesis of other organic compounds and as an analytical reagent. The compound is characterized by its yellow crystalline appearance and is soluble in common organic solvents.

4519-45-3

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4519-45-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 4519-45-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,5,1 and 9 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 4519-45:
(6*4)+(5*5)+(4*1)+(3*9)+(2*4)+(1*5)=93
93 % 10 = 3
So 4519-45-3 is a valid CAS Registry Number.

4519-45-3SDS

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-[(4-methylphenyl)hydrazinylidene]-6-oxocyclohexa-1,4-diene-1-carboxylic acid

1.2 Other means of identification

Product number -
Other names 5-p-Toluolazo-salicylsaeure

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:4519-45-3 SDS

4519-45-3Relevant academic research and scientific papers

Synthesis, characterization and radical scavenging activity of aromatic amine conjugates of 5-Aminosalicylic acid

Harveer, Kaur,Jasmeen, Sidana

, p. 475 - 480 (2014)

5-Aminosalicylic acid is an anti-inflammatory drug used in the treatment of inflammatory bowel diseases including ulcerative colitis and Crohn's disease. Due to its rapid and extensive absorption in the upper gastro-intestinal tract, substantial amount of 5-aminosalicylic acid is already lost before reaching the site of action, i.e. the colon. In order to prevent this loss of drug, carrier linked prodrug approach has been used and azo prodrugs have been synthesized with a purpose of colon targeting. The present research describes the synthesis and characterization of azo prodrugs of 5-aminosalicylic acid with aromatic amines. The synthesized prodrugs were tested for antioxidant activity using DPPH (2,2-diphenyl-1-picrylhydrazy1) free radical scavenging activity. All the synthesized compounds were found to possess mild to moderate radical scavenging activity.

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