C.I. Food Black 2
Time:2015-09-04 21:42:19,Count:0

C.I. Food Black 2
Alias
C.I. 27755
Food black 2
CI 27755
2,7-Naphthalenedisulfonic acid, 6-amino-4-hydroxy-3-((7-sulfo-4-((4-sulfophenyl)azo)-1-naphthalenyl)azo)-, tetrasodium salt
Category
Zwitterionic surfactants-Amino sulfonic acid
CAS No.
2118-39-0
Molecular Formula & Molecular Weight
Molecular Formula: C26H15N5Na4S4O13
Molecular Weight: 825.64
Structural Formula
Properties
Appearance: solid.
Solubility: soluble 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, dyeing 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 dye. eg: personal care products.
Manufacturers