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HomeProduct name listDirect blue 116 (C.I. 27980)

Direct blue 116 (C.I. 27980)

  • CAS NO.：6227-23-2
  • Empirical Formula: C33H26N5Na3O11S2
  • Molecular Weight: 801.68575
Direct blue 116 (C.I. 27980) Structural

What is Direct blue 116 (C.I. 27980)?

Preparation

2-Amino-3,5-dimethylbenzenesulfonic acid diazo, and 2-Amino-4-methylanisole coupling, product to diazo, and 6-(3-Carboxy-4-hydroxyanilino)-1-naphthol-3-sulfonic acid?coupling.

Properties and Applications

red light blue. For the red light purple is soluble in water, soluble in alcohol. The strong sulfuric acid for blue-ray green, diluted to blue. The dye solution to join strong hydrochloric acid have precipitation of dark; Add thick sodium hydroxide solution has the purple precipitation.

Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water
Fading Stain Fading Stain
ISO 3 4-5 4 1-2 2

Safety information for Direct blue 116 (C.I. 27980)

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