Indanthrone 97.0%

97.0%


Synonym:  Vat Blue 4
Linear Formula:  C28H14N2O4 
Molecular Weight:  442.43g/mol
CAS Number: 81-77-6

Properties

Water Solubility Insoluble
Assay Purity >97%
Refractive index 1.746
B pt. 740.2℃ at 760 mmHg
M pt. 470-500℃
Density 1.487 g/cm3

Safety Information

Hazard Statement(s) H302
Precautionary Statement  P501-P270-P264-P301 + P312 + P330
Symbol
Signal word Warning
HS Code 3204170000
Flash point 253.9℃
Storage Temp. Store at room temperature.
Storage Class 3
Packaging Glass Bottle
UN Number 3271

Description

Recommended products
8-Pentadecanone 99.0%(GC)

Application
Indanthrone blue also called indanthrene is an organic dye made from 2-aminoanthraquinone treated with potassium hydroxide in the presence of a potassium salt. It is a pigment that can be used in the following mediums acrylic alkalyd casein encaustic fresco gouache linseed oil tempera pastel and watercolor painting. It is used to dye unmordanted cotton and as a pigment in quality paints and enamels. As a food dye it has E number E130 but it is not approved for use in either the United States or the European Union. Indanthrene Blue RS was patented in 1901 by Rene Bohn as the first anthraquinone vat dye one of the dyes with very good fastness to light and washing.

Purpose
For R&D use onlynot for drug household or other uses.