National Toxicology Program

National Toxicology Program

Testing Status of 1-Naphthalenesulfonic acid, 6-diazo-5,6-dihydro-5-oxo, sodium salt - M020042


CASRN: 2657-00-3

Formula: C10-H6-N2-O4-S.Na

Synonyms/Common Names

  • Sodium 2-diazo-1-naphthol-5-sulfonate
  • Sodium 1,2-naphthoquinone-2-diazide-5-sulfonate

Known Uses

Used in the manufacture or formulation of photoresists

Chemical Properties

Toxicity Effects (HSDB)

Nomination Background

Genetic Toxicology

  • Salmonella  (G02042)  Completed 
    •  Positive 
NTP is located at the National Institute of Environmental Health Sciences, part of the National Institutes of Health.