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Pigment Red 3 Structure

Pigment Red 3

Chemical Properties

Melting point 270-272 °C(lit.)
Boiling point 447.81°C (rough estimate)
Density  1.1873 (rough estimate)
refractive index  1.6500 (estimate)
solubility  Chloroform (Slightly, Heated), DMSO (Slightly), Toluene (Very Slightly)
Colour Index  12120
pka 13.45±0.50(Predicted)
Water Solubility  211μg/L at 20℃
Stability Stable. May be moisture sensitive. Incompatible with strong oxidizing agents.
LogP 5.4 at 25℃
CAS DataBase Reference 2425-85-6(CAS DataBase Reference)
IARC 3 (Vol. 57) 1993
NIST Chemistry Reference 2-Naphthalenol, 1-[(4-methyl-2-nitrophenyl)azo]-(2425-85-6)
EPA Substance Registry System C.I. Pigment Red 3 (2425-85-6)

Safety Information

Hazard Codes  Xi,N
Risk Statements  41-50/53
Safety Statements  26-39-60-61
RIDADR  UN 3077 9/PG 3
WGK Germany  3
RTECS  QK4247000
Hazardous Substances Data 2425-85-6(Hazardous Substances Data)

MSDS

Usage And Synthesis

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