National Toxicology Program

National Toxicology Program

Nomination Summary for Juglone (N20002)


Specific Substances: Black walnut extract/juglone, Juglone

Nomination Date: 10/25/1999

Nominator: NCI

Rationale: Juglone is a potentially toxic natural substance found in dietary supplements, hair dyes and walnut oil stains. There is some evidence to suggest that juglone is a potential chemotherapeutic or chemopreventive agent.

NTP Principles: 2, 3, 7

Status: Selected

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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Agent Name: Black walnut extract/juglone

  • No studies are available.

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CASRN: 481-39-0

Agent Name: Juglone

NTP is located at the National Institute of Environmental Health Sciences, part of the National Institutes of Health.