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Nomination Summary for Diazonaphthoquinone compounds (N20220)

Nominated Substances: DNQ compounds, 1-Naphthalenesulfonic acid, 6-diazo-5,6-dihydro-5-oxo, sodium salt, 1-Naphthalenesulfonyl chloride, 6-diazo-5,6-dihydro-5-oxo-, 1-Naphthalensulfonic acid, 6-diazo-5,6-dihydro-5-oxo, ester with phenyl(2,3,4-trihydroxyphenyl) methanone, 1-Naphthalenesulfonic acid, 6-diazo-5,6-dihydro-5-oxo-,4-benzoyl-1,2,3-benzenetriylester

Nomination Date: 04/10/2002

Nominator: NIEHS

Rationale: Moderate production volume; potential worker exposures from use in photolithography processes; lack of adequate toxicological data (1, 6, 7)

NTP Principles: 1, 6, 7

Agents and Status

The following information relates to the specific agent and may include history from earlier or later nominations for this same agent.

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CASRN: 2657-00-3

Agent Name: 1-Naphthalenesulfonic acid, 6-diazo-5,6-dihydro-5-oxo, sodium salt