C.I. Direct Red 39

Synonyms

1,3-Naphthalenedisulfonic acid, 8-((4'-((4-ethoxyphenyl)azo)-3,3'-dimethyl(1,1'-biphenyl)-4-yl)azo)-7-hydroxy-, disodium salt; Airedale Scarlet 3BD; Amanil Fast Scarlet 3B; Atlantic Scarlet 3B; Benzanil Scarlet 3B; Benzanol Brilliant Scarlet 3B; Benzo Red 3B; Benzyl Scarlet 3BS; C.I. 23630; C.I. Direct Red 39, disodium salt; CI Direct Red 39; Calcomine Scarlet 3B; Calcomine Scarlet 3BS; Chloramine Red 3B; Chrome Leather Scarlet 3BS; Diamine Scarlet 3BA-CF; Diaphtamine Fast Scarlet; Diaphtamine Fast Scarlet 3B; Diazol Scarlet 3B; Diphenyl Red 3BS; Diphenyl Scarlet 3BS; Direct Fast Scarlet 3B; Direct Red 39; Direct Scarlet 3BS; Erie Scarlet 3B; Fenamin Scarlet 3B; Kayaku Direct Scarlet 3B; Mitsui Direct Scarlet 3BX; Paper Scarlet 3BP; Paper Scarlet 3BX; Paramine Fast Scarlet 3B; Phenamine Scarlet 3B; Pheno Fast Scarlet 4B; Pontamine Scarlet 3B; Shikiso Direct Scarlet 3B; Triazol Fast Scarlet 3B; Union Fast Scarlet 3B; [ChemIDplus]

Category

Benzidine Dyes

Description

Dark red solid; [CAMEO]

Sources/Uses

Used as dye for cellulose, silk, wool, nylon, leather, and paper; Also used in consumer home dyes; [HSDB]

Comments

No health hazard information available; [CAMEO] Dimethylbenzidine-based dyes are reasonably anticipated to be human carcinogens, but neither dogs or rats excreted quantifiable amounts of DMB after being fed C.I. Direct Red 2 or C.I. Direct Red 39; [NTP]

Biomedical References

Anticipated human carcinogen

Processes

Industrial Processes with risk of exposure:

• Leather Tanning and Processing
• Pulp and Paper Processing
• Textiles (Printing, Dyeing, or Finishing)

Activities

Activities with risk of exposure:

• Textile arts