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Azoic Coupling Component 25

Name:C.I.Azoic Coupling Component 25,C.I.37590

Molecular Structure:

C.I.Azoic Coupling Component 25,C.I.37590,CAS 5840-22-2,396.44,C25H20N2O3,Naphthol AS-SR

C.I.Azoic Coupling Component 25,C.I.37590,CAS 5840-22-2,396.44,C25H20N2O3,Naphthol AS-SR

Molecular Formula:C25H20N2O3

Molecular Weight: 396.44

CAS Registry Number:5840-22-2

Manufacturing Methods :  5-Methoxy-2-methylbenzenamine and 2-Hydroxy-11H-benzo[a]carbazole-3-carboxylic acid condensation.

Properties and Applications: shallow olive powder. Insoluble in water, but soluble in nitrobenzene and pyridine, slightly soluble in butanol. In the yellow brown for sulfuric acid solution; Sodium carbonate in solution not dissolve. Melting point for 306 ~ 308 ℃. This product is mainly used for cotton, PVA and glue dyeing, is dyed black and purple main render agent, rarely used for printing of cotton, can be used for the manufacture of neutral grain. This product to cotton of high affinity, coupled with less ability.

List of Suppliers:

Naphtanilide SR( Rohner Ltd )

Naphthol ASSR( Amar Impex  )

Naphtol AS-LC( Sinochem Ningbo Imp & Exp Corp )

Tulathol AS-SR( Atul Limited  )


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