National Toxicology Program

National Toxicology Program

Testing Status of Vat brown 1 - 2475334


CASRN: 2475-33-4

Formula: C42-H18-N2-O6

Synonyms/Common Names

  • 16,23-Dihydronaphth(2',3':6,7)indolo(2,3-c)dinaphtho(2,3-a:2'3'-i)carbazole-5,10,15,17,22,24-hexone

Known Uses

Dye for cotton, silk, paper

Chemical Properties

Toxicity Effects (HSDB)

Genetic Toxicology

  • In Vitro Cytogenetics (CA/SCE)  (914705)  Completed 
    • Sister Chromatid Exchange Negative 
    • Chromosome Aberrations Negative 
  • Salmonella  (977830)  Completed 
    •  Negative 
NTP is located at the National Institute of Environmental Health Sciences, part of the National Institutes of Health.