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5-(phenylazo)salicylic acid

5-(phenylazo)salicylic acid Structure
CAS No.
3147-53-3
Chemical Name:
5-(phenylazo)salicylic acid
Synonyms
CK 46A;NSC 163392;Mesalazine Impurity I;Phenylazosalicylic Acid;Mesalazine EP Impurity I;Mesalamine EP Impurity I;5-(phenylazo)salicylic acid;2-Hydroxy-5-(phenylazo)benzoic acid;2-Hydroxy-5-(phenyldiazenyl)benzoic;Mesalazine (Mesalamine) EP Impurity I
CBNumber:
CB8930268
Molecular Formula:
C13H10N2O3
Molecular Weight:
242.23
MOL File:
3147-53-3.mol
Modify Date:
2024/7/7 20:48:41

5-(phenylazo)salicylic acid Properties

Melting point 220.5 °C
Boiling point 472.7±40.0 °C(Predicted)
Density 1.30±0.1 g/cm3(Predicted)
storage temp. 2-8°C
solubility Acetone (Slightly), Aqueous Base (Slightly), Methanol (Slightly)
form Solid
pka 2.71±0.10(Predicted)
color Brown to Dark Brown
Stability Light Sensitive

SAFETY

Risk and Safety Statements

Symbol(GHS) 
GHS07
Signal word  Warning
Hazard statements  H319-H302
Precautionary statements  P264-P270-P301+P312-P330-P501-P264-P280-P305+P351+P338-P337+P313P

5-(phenylazo)salicylic acid Chemical Properties,Uses,Production

Uses

Mesalazine (M258100) impurity.

5-(phenylazo)salicylic acid Preparation Products And Raw materials

Raw materials

Preparation Products

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5-(phenylazo)salicylic acid Phenylazosalicylic Acid 2-Hydroxy-5-(2-phenyldiazenyl)benzoic Acid Benzoic acid,2-hydroxy-5-(2-phenyldiazenyl)- 2-Hydroxy-5-(phenylazo)benzoic acid 2-hydroxy-5-phenyldiazenyl benzoic acid CK 46A NSC 163392 6-oxo-3-(phenylhydrazinylidene)cyclohexa-1,4-diene-1-carboxylic acid Mesalazine (Mesalamine) EP Impurity I Mesalazine Impurity I Imp. I (EP):2-Hydroxy-5-(phenyldiazenyl)benzoic Acid(Phenylazosalicylic Acid) 2-Hydroxy-5-(phenyldiazenyl)benzoic Mesalazine EP Impurity I Mesalazine Impurity 9(Mesalazine EP Impurity I) Mesalamine EP Impurity I Mesalazine EP Impurity I 2-hydroxy-5-(phenyldiazenyl)benzoic acid (phenylazosalicylic acid). 3147-53-3 Aromatics Impurities Intermediates & Fine Chemicals Pharmaceuticals