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AZOCARMINE G

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AZOCARMINE G Basic information

Product Name:
AZOCARMINE G
Synonyms:
  • ROSINDULINE GXF
  • ROSINDULINE
  • Benzo(.alpha.)phenazinium,7-phenylsulfo-5-((4-sulfophenyl)amino)-,hydroxide,innersalt,monosodiumsalt
  • benzo[a]phenazinium,7-phenylsulfo-5-[(4-sulfophenyl)amino]-,hydroxide,inner
  • salt,monosodiumsalt
  • ACID RED 101
  • Benzo[a]phenazinium,7-phenylsulfo-5-[(4-sulfophenyl)amino]-, inner salt, sodium salt (1:1)
  • BASALAN CARMINE GE
CAS:
25641-18-3
MF:
C28H19N3O6S2.Na
MW:
579.58
EINECS:
247-157-3
Product Categories:
  • Organics
Mol File:
25641-18-3.mol
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AZOCARMINE G Chemical Properties

Colour Index 
50085
form 
Powder
color 
Maroon
Water Solubility 
Soluble in water (1 mg/ml).
CAS DataBase Reference
25641-18-3
EPA Substance Registry System
Benzo[a]phenazinium, 7-phenylsulfo-5-[(4-sulfophenyl)amino]-, inner salt, monosodium salt (25641-18-3)
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Safety Information

Safety Statements 
22-24/25
WGK Germany 
3
TSCA 
Yes
HS Code 
3204120090

MSDS

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AZOCARMINE G Usage And Synthesis

Chemical Properties

Dark red or purple powder

Uses

Azocarmine G (CAS# 25641-18-3) is an organic dye used as a redox indicator in titrations with chloramine-?T.

Definition

ChEBI: An organic sodium salt having 7-phenyl-5-(4-sulfonatoanilino)benzo[a]phenazin-7-ium-3-sulfonate as the couterion.

Preparation

4-(Phenyldiazenyl)naphthalen-1-amine with aniline and aniline hydrochloride heating, the resulting Phenyl Rosinduline fuming sulfuric acid with two stlfonation, again as sodium salt out of segregation.

Properties and Applications

blue-ray red. Soluble in water for blue-ray red. The strong sulfuric acid for green, red precipitate after diluted. Add in aqueous solution hydrochloric acid have red precipitate; Add water to dissolve.

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

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