Proposition 65 Chemical List - Correction of listing of chemicals Chinomethionat and Salicylazosulfapyridine

The Office of Environmental Health Hazard Assessment (OEHHA) of the California Environmental Protection Agency is making a correction to the listing of the chemicals chinomethionat (oxythioquinox) (CAS No. 2439-01-2) and salicylazosulfapyridine (CAS No. 599-79-1).

Chinomethionat (Oxythioquinox) was listed as a chemical known to cause developmental toxicity on November 6, 1998. It was also listed as known to cause cancer under the name of oxythioquinox on August 20, 1999. Because it is the same chemical with the same CAS number, for clarity and consistency, the chemical name will be listed as oxythioquinox (chinomethionat) for the endpoints of cancer and developmental toxicity. The effective dates of the listing of the chemical under the two endpoints remains, respectively the same.

Salicylazopyridine (CAS No. 599-79-1) was listed as a chemical known to cause cancer on May 15, 1998. It was also listed as known to cause male reproductive toxicity under the name of sulfasalazine on January 29, 1999. Again, since it is the same chemical with the same CAS number, for clarity and consistency, the chemical will be listed as sulfasalazine (salicylazopyridine) for the endpoints of cancer and male reproductive toxicity. The effective dates of the listing of the chemical under the two endpoints remains, respectively the same.

A complete, updated Proposition 65 list is published elsewhere in this issue of the California Regulatory Notice Register. For clarity and conformity with the standards of the Chemical Abstract Service (CAS) Registry of the American Chemical Society, the CAS numbers of the chemicals are now shown with hyphens.

Cancer

Chemical Cas No. Toxicological endpoint Date of listing
Oxythioquinox (Chinomethionat) 2439-01-2 cancer August 20, 1999
Sulfasalazine (salicylazosulfapyridine) 599-79-1 cancer May 15, 1998

Reproductive toxicity

Chemical CAS No. Toxicological Endpoint Date of Listing
Oxythioquinox (Chinomethionat) 2439-01-2 developmental November 6, 1998
Sulfasalazine (salicylazosulfapyridine) 599-79-1 male

January 29, 1999