PRODUCT IDENTIFICATION

H.S. CODE

TOXICITY

C1(\C=C\C(=[N+](\CC)CC)C=C1)=C(/c1ccc(N(CC)CC)cc1)c1c( S(=O )(=O)[O-])cc(c(c1)O)S(=O)(=O)[O-].[Ca+2]. C1(=C(/c2ccc(N(CC)CC)cc2) c2cc(O)c(S(=O)(=O)[O-])cc2S(=O) (=O)[O-])\C=C\C(=[N+](\CC)CC)C=C1

CLASSIFICATION

Food coloring, Triarylmethane dye

EXTRA NOTES

Patent Blue V is banned as a food dye in Australia and USA, because health officials in these countries suspect that it may cause allergic reactions

PHYSICAL AND CHEMICAL PROPERTIES

dark blue powder

Soluble

REFRACTIVE INDEX

EXTERNAL LINKS & GENERAL DESCRIPTION

Wikipedia Linking - Patent Blue V

Google Scholar Search - Patent Blue V

Drug Information Portal (U.S. National Library of Medicine) - Patent Blue V

PubChem Compound Summary - Patent Blue V

KEGG (Kyoto Encyclopedia of Genes and Genomes) - Patent Blue V

http://www.ebi.ac.uk/ - Patent Blue V

http://www.ncbi.nlm.nih.gov/ - Patent Blue V

Local:
Patent Blue V is a synthetic acid dye; soluble in water; melting point >300 C; used in coloring food, cosmetics and meications (C.I. Food Blue 5). The chemical designation is Bis[hydrogen [4-[4-(diethylamino)-5'-hydroxy-2',4'-disulphonatobenzhydrylidene] cyclohexa- 2,5-dien-1-ylidene]diethylammonium], calcium salt (2:1). Acid dyes are water-soluble dyes employed mostly in the form of sodium salts of the sulfonic or carboxylic acids. They are anionic which attach strongly to cationic groups in the fibre directly. They can be applicable to all kind of natural fibres like wool, cotton and silk as well as to synthetics like polyesters, acrylic and rayon. But they are not substantive to cellulosic fibres. They are also used in paints, inks, plastics and leather.

APPEARANCE

dark blue powder

DYE CONTENT

85.0% min

10.0% max

WATER INSOLUBLES

0.2% max

1.5% max

0.5% max

3ppm max

10ppm max

1ppm max