ChemicalBook CAS DataBase List 3905-19-9

3905-19-9

Name	C.I. 20730
CAS	3905-19-9
EINECS(EC#)	223-460-6
Molecular Formula	C40H24Cl4N6O4
Molecular Weight	794.47
MOL File	3905-19-9.mol

Synonyms

C.I. 20730 Pigment Red 166 C.I. Pigment Red 166 CroMophtal Scarlet R Cromophtal Scarlet R (CGY) NQDGNYQKISTHLK-RYZURTRPSA-N Pigment red 166 (C.I. 20730) 1,4-Bis[[1-(2,5-dichlorophenylazo)-2-hydroxy-3-naphthoyl]amino]benzene 1,4-Bis[1-[(2,5-dichlorophenyl)azo]-2-hydroxynaphthalen-3-ylcarbonylamino]benzene 2-Naphthalenecarboxamide, N,N-1,4-phenylenebis4-(2,5-dichlorophenyl)azo-3-hydroxy- N,N'-1,4-phenylenebis[4-(2,5-dichlorophenyl)azo]-3-hydroxy-2-Naphthalenecarboxamide N,N'-(1,4-Phenylene)bis[3-hydroxy-4-(2,5-dichlorophenylazo)-2-naphthalenecarboxamide] N,N'-phenylene-1,4-bis[4-[(2,5-dichlorophenyl)azo]-3-hydroxynaphthalene-2-carboxamide] 2-Naphthalenecarboxamide, N,N'-1,4-phenylenebis[4-[2-(2,5-d ichlorophenyl)diazenyl]-3-hydroxy- N-[[2,5-dichloro-4-[4-[2,5-dichloro-4-[N'-(3-hydroxynaphthalene-2-carbonyl)iminohydrazino]phenyl]phenyl]phenyl]hydrazono]-3-hydroxy-2-naphthamide N-[[2,5-dichloro-4-[4-[2,5-dichloro-4-[2-(3-hydroxynaphthalene-2-carbonyl)iminohydrazinyl]phenyl]phenyl]phenyl]hydrazinylidene]-3-hydroxynaphthalene-2-carboxamide N-[[2,5-dichloro-4-[4-[2,5-dichloro-4-[2-(3-hydroxynaphthalen-2-yl)carbonyliminohydrazinyl]phenyl]phenyl]phenyl]hydrazinylidene]-3-hydroxy-naphthalene-2-carboxamide

Chemical Properties

Boiling point	891.4±65.0 °C(Predicted)
density	1.50
pka	11.00±0.70(Predicted)
EPA Substance Registry System	2-Naphthalenecarboxamide, N,N'-1,4-phenylenebis[4-[(2,5-dichlorophenyl)azo]-3-hydroxy- (3905-19-9)

Hazard Information

Uses

Pigment Red 166 is an organic pigment.

Flammability and Explosibility

Notclassified

Properties and Applications

TEST ITEMS	SPECIFICATION
APPEARANCE	RED POWDER
SHADE	BLUISH
HEAT RESISTANCE	300°C min
LIGHT FASTNESS	7-8
ACID RESISTANCE	5
ALKALI RESISTANCE	5
FASTNESS TO BLEEDING	5
OIL ABSORPTION	40-50%
SPECIFIC SURFACE	24 m ² /g
DENSITY	1.50 g/cm ³
RESIDUE ON 80 MESH	5.0% max
WATER SOLUBLE	1.0% max
VOLATITE 105 °C	1.0% max
TINTING STRENGTH	100-105 %

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