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Testing Status of C.I. Vat Blue 1 11168-E


CASRN: 482-89-3

Formula: C16-H10-N2-O2

Synonyms/Common Names

  • Blue 1, C.I. Vat
  • 2-(1,3-Dihydro-3-oxo-2H-indazol-2-ylidene)-1,2-dihydro-3H-indol-3-one

Known Uses

Textile dye, approved by FDA for use in sutures, originally obtained from indigo plant (Merck 1989).

Chemical Properties

Toxicity Effects (HSDB)

Special Studies

  • Absorption Disposition Metabolism Elimination (Gavage; Intravenous; Topical Application)  (S0039)  Completed 
    • Male Rats
    • Dose: IV:0.23; PO:3, 31, 305; D:1.5, 3.7 MG/KG.

Genetic Toxicology

  • Salmonella  (298321)  Completed 
    •  Equivocal 
  • Salmonella  (881598)  Completed 
    •  Positive