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)

Safety Data

TSCA	TSCA listed

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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