National Toxicology Program

CASRN: 121-88-0

Formula: C6 H6 N2 O3

Synonyms/Common Names:

• C-I. 76535

Known Uses:

CHEMICAL INTERMEDIATE FOR DYES. COMPONENT OF PERMANENT HAIR PRODUCTS. (TDB)

Short-Term Toxicity

• 14-Day (Gavage)  (C55970) Completed 
  • NTIS No. PB88-184809  (Peer Review 03/04/1987)
    Citation: Toxicology and Carcinogenesis Studies of 2-Amino-5-Nitrophenol (CAS No. 121-88-0) in F344/N Rats and B6C3F1 Mice (Gavage Studies)
  • Rats: F344/N; Mice: B6C3F1
• 13-Week (Gavage)  (C55970) Completed 
  • NTIS No. PB88-184809  (Peer Review 03/04/1987)
    Citation: Toxicology and Carcinogenesis Studies of 2-Amino-5-Nitrophenol (CAS No. 121-88-0) in F344/N Rats and B6C3F1 Mice (Gavage Studies)
  • Rats: F344/N; Mice: B6C3F1
  • Dose: 0,100,1600 MG/KG/10 PER GROUP

Long-Term Carcinogenicity

• 2-YEAR (Gavage)  (C55970) Report Complete 
  • TR-334 (NTIS No. PB88-184809)  (Peer Review 03/04/1987)
    Toxicology and Carcinogenesis Studies of 2-Amino-5-Nitrophenol (CAS No. 121-88-0) in F344/N Rats and B6C3F1 Mice (Gavage Studies)
  • Rats: F344/N; Mice: B6C3F1
  • Carcinogenesis Results
  • Male Rats Some Evidence 
  • Female Rats No Evidence 
  • Male Mice No Evidence 
  • Female Mice No Evidence 
  • Dose: R: 0,100,200, M: 0,400,800 MG/KG/50 PER GROUP

Genetic Toxicology

• In Vitro Cytogenetics (CA/SCE)  (854073) Completed 
  • Citation: Anderson, B.E., Zeiger, E., Shelby, M.D., Resnick, M.A., Gulati, D.K., Ivett, J.L., and Loveday, K.S. Chromosome aberration and sister chromatid exchange test results with 42 chemicals. Environ. Molec. Mutagen. Vol. 16 (Suppl 18) (1990) 55-137
  • Chromosome Aberation Positive 
  • Sister Chromatid Exchange Positive 
• Mouse Lymphoma  (210466) Completed 
  • Citation: Myhr B.C., McGregor, D., Bowers, L., Riach, C., Brown, A., Edwards, I., McBride, D., Martin, R., and Caspary, W.J. L5178Y mouse lymphoma cell mutation assay results with 41 compounds. Environ. Molec. Mutagen. Vol. 16 (Suppl 18) (1990) 138-167
  •  Positive 
• Salmonella  (000277) Completed 
  • Citation: Zeiger, E., Anderson, B., Haworth, S., Lawlor, T., Mortelmans, K., and Speck, W. Salmonella mutagenicity tests. III. Results from the testing of 225 chemicals Environ. Mutagen. Vol. 9 (Suppl 9) (1987) 1-109
  •  Positive