Macrolex blue 3R

Structural formula
General
Surname	Macrolex blue 3R
other names	1,4-bis [(2-ethyl-6-methylphenyl) amino] anthraquinone Macrolex Blue 3R Alizarin brilliant pure blue RLW
Molecular formula	C 32 H 30 N 2 O 2
Brief description	reddish blue powder
External identifiers / databases
CAS number 41611-76-1 EC number 255-460-7 ECHA InfoCard 100.050.401 PubChem 6451771 ChemSpider 4954224 Wikidata Q21518176
properties
Molar mass	474.6 g mol −1
Physical state	firmly
density	1.26 g cm −3
Melting point	167 ° C
solubility	practically insoluble in water
safety instructions
GHS hazard labeling no classification available
Toxicological data	> 5000 mg kg −1 ( LD 50 ,  rat ,  oral )
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Macrolex Blue 3R is an anthraquinone dye that provides a reddish blue. It can be used to color plastics such as PS , SAN , PMMA , PC , PET and ABS .

The compound is prepared by reacting quinizarine and 6-ethyl-2-toluidine .

Individual evidence

1. ↑ ^{a b c d e} data sheet MACROLEX ® Blue 3R at Lanxess, accessed on December 26, 2017.
2. ↑ This substance has either not yet been classified with regard to its hazardousness or a reliable and citable source has not yet been found.
3. ↑ Registration dossier on 1,4-bis [(2-ethyl-6-methylphenyl) amino] anthraquinone at the European Chemicals Agency (ECHA), accessed on December 26, 2017.
4. ↑ Patent DE102006057652 : Process for the production of substituted aminoanthraquinones. Registered on December 7, 2006 , published on June 12, 2008 , applicant: Lanxess Germany, inventor: Horst Berneth. ‌