C.I. Direct Blue 15
Agent Name
C.I. Direct Blue 15
CAS Number
2429-74-5
Formula
C34-H24-N6-O16-S4.4Na
Major Category
Dyes
Synonyms
Airedale Blue D; Aizen Direct Sky Blue 5B; Aizen Direct Sky Blue 5BH; Amanil Sky Blue; Atlantic Sky Blue A; Atul Direct Sky Blue; Azine Sky Blue 5B; Belamine Sky Blue A; Benzanil Sky Blue; Benzo Sky Blue A-CF; Benzo Sky Blue S; C.I. 24400; C.I. Direct Blue 15, tetrasodium salt; CI Direct Blue 15; Cartalsol Blue 2GF; Cartasol Blue 2GF; Chloramine Sky Blue 4B; Chloramine Sky Blue A; Chrome Leather Pure Blue; Cresotine Pure Blue; Diacotton Sky Blue 5B; Diamine Blue; Diamine Blue 6B; Diamine Sky Blue; Diamine Sky Blue CI; Diaphtamine Pure Blue; Diazol Pure Blue 4B; Diphenyl Brilliant Blue; Diphenyl Sky Blue 6B; Direct Blue 10G; Direct Blue 15; Direct Blue HH; Direct Pure Blue; Direct Pure Blue M; Direct Pure Blue N; Direct Sky Blue; Direct Sky Blue 5B; Direct Sky Blue A; Enianil Pure Blue AN; Fenamin Sky Blue; Hispamin Sky Blue 3B; Kayafect Blue Y; Kayaku Direct SKH Blue 5B; Kayaku Direct Sky Blue 5B; Mitsui Direct Sky Blue 5B; Modr Prima 15 [Czech]; NCI C61290; Naphtamine Blue 10G; Niagara Blue 4B; Niagara Sky Blue; Nippon Direct Sky Blue; Nippon Sky Blue; Nitsui Direct Sky Blue 5B; Nitto Direct Sky Blue 5B; Oxamine Sky Blue 5B; Paper Blue S; Phenamine Sky Blue A; Pontacyl Sky Blue 4BX; Pontamine Sky Blue 5 BX; Pontamine Sky Blue 5BX; Shikiso Direct Sky Blue 5B; Sky Blue 4B; Sky Blue 5B; Tertrodirect Blue F; Vondacel Blue HH; 2,7-Naphthalenedisulfonic acid, 3,3'-((3,3'-dimethoxy(1,1'-biphenyl)-4,4'-diyl)bis(2,1-diazenediyl))bis(5-amino-4-hydroxy-, sodium salt (1:4); 2,7-Naphthalenedisulfonic acid, 3,3'-((3,3'-dimethoxy-4,4'-biphenylylene)bis(azo))bis(5-amino-4-hydroxy-, tetrasodium salt; Tetrasodium 3,3'-((3,3'-dimethoxy(1,1'-biphenyl)-4,4'-diyl)bis(azo))bis(5-amino-4-hydroxynaphthalene-2,7-disulphonate); [ChemIDplus]
Category
Benzidine Dyes
Description
Deep purple to dark blue solid; [CAMEO] Dark bluish-grey odorless powder; [MSDSonline]
Sources/Uses
Used as dye (silk, wool, viscose, leather, paper, cotton, and other cellulose fibers), biological stain, and tint for cinematographic films; [HSDB]
Comments
A 3,3'-Dimethoxybenzidine derived dye; Metabolically converted to Dimethoxybenzidine in rodent intestinal tracts; High-dose oral studies of rats identified the liver and kidneys as target organs; [HSDB] One of the azo dyes metabolized to o-dianisidine--reasonably anticipated to be a human carcinogen; [NTP] May cause irritation; Limited evidence that it is carcinogenic; [MSDSonline]
Biomedical References
Adverse Effects
Hepatotoxin
Hepatoxic (a) from occupational exposure (secondary effect) or (b) in animal studies or in humans after ingestion
IARC Carcinogen
Possible (2b)
Diseases, Processes, and Activities Linked to This Agent
Processes
Industrial Processes with risk of exposure: