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Acid Red 40

Name:C.I.Acid Red 40,C.I.18070

Molecular Structure: Single azo class

C.I.Acid Red 40,C.I.18070,CAS 12167-45-2,537.48,C20H17N3Na2O8S2,Calocid Ceresine

C.I.Acid Red 40,C.I.18070,CAS 12167-45-2,537.48,C20H17N3Na2O8S2,Calocid Ceresine

Molecular Formula:C20H17N3Na2O8S2

Molecular Weight: 537.48

CAS Registry Number:12167-45-2

Manufacturing Methods : mix 2,4-Dimethylbenzenamine diazo, and 4-Acetamido-5-hydroxynaphthalene-2,7-disulfonic acid coupling.

Properties and Applications: blue-ray red. Soluble in water is red. The strong sulfuric acid for blue-ray red, diluted for pink; In nitric acid for pink; In 10% of sodium hydroxide solution for yellow.

Standard Light Fastness Soaping Persperation Fastness Oxygen bleaching Fastness to seawater
Fading Stain Fading Stain Fading Stain
AATCC 5 2 2-3 1 2-3

List of Suppliers:

Calocid Ceresine ( Columbian Chemicals UK )


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