C.I. Pigment Red 23
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C.I. Pigment Red 23
Alias
C.I. 12355
2-Naphthalenecarboxamide, 3-hydroxy-4-(2-(2-methoxy-5-nitrophenyl)diazenyl)-N-(3-nitrophenyl)-
Category
Non-ionic surfactants-Amide
CAS No.
6471-49-4
Molecular Formula & Molecular Weight
Molecular Formula: C24H17N5O7
Molecular Weight: 487.42
Structural Formula
Properties
Appearance: solid.
Solubility: insoluble in water.
Stability: stable.
Risk: irritation, irritation to skin, eye.
Ecology: may be hazardous to environment. Water body should be given special attention.
Biodegradability: biodegradable.
Characteristics: excellent masking, coloring abilities.
Synthesis
 
Quality standards & test methods
item
physical and chemical indexes
test methods
Actives*, %, ≥
95
 
*: should be marked on molecular weight.
Major Uses
Use as pigment.
Manufacturers
 

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