Ricin

Safety Summary

Regulatory Status

Sources

These citations are the ones recorded for the human adult context.

• US CDC/ATSDR: Ricin — Toxicological Profile, Mechanism of Action, Lethal Dose Estimates, and Emergency Response Guidelines (2011) REGULATORY · 2011
• ASPCA Animal Poison Control Center: Castor Bean (Ricinus communis) — Ricin Toxicity in Dogs and Cats, Clinical Case Series, and Treatment Outcomes (2020) VETERINARY · 2020
• OEHHA Proposition 65 List of Carcinogens or Reproductive Toxicants (CSV, list date 31-Jul-26) REGULATORY
• Permissible Exposure Limits – OSHA Annotated Table Z-1 REGULATORY

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