California Prop 65: Clomiphene Citrate Listed as Known to Cause Cancer

May 24, 2013

The Office of Environmental Health Hazrd Assessment (OEHHA) has added clomiphene citrate (CAS No. 50-41-9) to the list of chemicals known to the State to cause cancer, in accordance with Proposition 65. The addition of clomiphene citrate to the list is effective as of May 24, 2013.

Based on the requirement for a state or federal agency to identify and label the chemical as causing cancer or reproductive toxicity, clomiphene citrate has been added in under the administrative listing mechanism provided under the Act. In accordance with formal requirements defined by the US FDA, clomiphene citrate has been labeled or identified as a risk of cancer. Information regarding the regulations for the listing of chemicals under the "formally required to be labeled or identified" mechanism can be found in the California Code of Regulations.

The Notice of Intent to List A Chemical by the "Formally Required to Be Labeled or Identified" Mechanism: , which was published in the April 5, 2013 issue of the California Regulatory Notice Register, substantiated OEHHAs determination that the administrative listing criteria had been satisfied.

Although the Notice of Intent to List A Chemical by the "Formally Required to Be Labeled or Identified" Mechanism: Clomiphene Citrate listed the CAS number as CAS No. 911-45-5, this is incorrect; the correct CAS No. is 50-41-9.

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