Colour Index Database

Colour Index

  • Name   CAS No.   C.I. No.
Name: Pigment orange 5
CAS: 3468-63-1
C.I. No.: C.I. 12075
Synonyms C.I. 12075; C.I. Pigment Orange 5; Pigment orange 5; Pigment Orange 5 (C.I.); 1-(2,4-dinitrophenylazo)-2-naphthol; Permanent orange; Pigment Orange 5; 1-[(2,4-dinitrophenyl)hydrazono]naphthalen-2(1H)-one
Molecular Formula C16H10N4O5
Molecular Weight 338.2744
InChI InChI=1/C16H10N4O5/c21-15-8-5-10-3-1-2-4-12(10)16(15)18-17-13-7-6-11(19(22)23)9-14(13)20(24)25/h1-9,17H
CAS Registry Number 3468-63-1
EINECS 222-429-4
Molecular Structure 3468-63-1 Pigment Orange 5
Density 1.52g/cm3
Boiling point 533.7°C at 760 mmHg
Refractive index 1.711
Flash point 276.6°C
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