Place of Origin : Mumbai,India  
                                                         
Acid blue 7, C.I. 42080, sodium salt, Patent Blue A, Acid Blue A, Manufacturer in India
HTRDJK
1. Names:
C.I. 42080, C.I. Acid Blue 7, sodium salt, Patent Blue A, Acid Blue A.
2. Specification.
Molecular Formula	 C37H35N2NaO6S2
 Molecular Weight	 690.8
 P.H. Value	 6.0-7.0
 Density(g/cm3)	 1.6
 Oil Absorption(ml/100g)	 35-45
 Light Fastness	 5
 Heat Resistance	 180 C
 Water Resistance	 5
 Oil Resistance	 4
 Acid Resistance	 5
 Alkali Resistance	 5