Proposition 65 List Changes MON 4660 (dichloroacetyl-1-oxa-4-azaspiro(4,5)-decane) (CAS No. 71526-07-3), MON 13900 (furilazole) (CAS No. 121776-33-8) and pymetrozine (CAS No. 123312-89-0) - Listed Effective March 22, 2011 As Known To The State Of California To Cause CancerIf you would like to sort the list by CAS number or date, please download the list as an Excel document. You can then sort the list by date, CAS number, or chemical name using MS Excel. The Excel document also includes the listing mechanism for each chemical listing and the safe harbor level, if one has been adopted. A hyperlink is provided for those chemicals for which the basis for listing documentation is available electronically. A hyperlink is provided for those safe harbor levels for which the risk assessment documentation is available electronically.
The Office of Environmental Health Hazard Assessment (OEHHA) within the California Environmental Protection Agency is adding MON 4660 (dichloroacetyl-1-oxa-4-azaspiro(4,5)-decane) (CAS No. 71526-07-3), MON 13900 (furilazole) (CAS No. 121776-33-8) and pymetrozine (CAS No. 123312-89-0) to the list of chemicals known to the state to cause cancer for purposes of the Safe Drinking Water and Toxic Enforcement Act of 1986 (Proposition 651). The listing of the three chemicals is effective March 22, 2011.
The listing of the three chemicals is based on formal identification by an authoritative body2, the U. S. Environmental Protection Agency (U.S. EPA), that the chemicals cause cancer. The criteria used by OEHHA for the listing of chemicals under the "authoritative bodies" mechanism can be found in Title 27, Cal. Code of Regs., section 25306.
The documentation supporting OEHHA’s determination that the criteria for administrative listing have been satisfied for these chemicals is included in the Notice of Intent to List MON 4660 (dichloroacetyl-1-oxa-4-azaspiro(4,5)-decane), MON 13900 (furilazole), and Pymetrozine http://www.oehha.ca.gov/prop65/CRNR_notices/admin_listing/intent_to_list/pdf_zip/NOILABPkg37a.pdf] published in the January 21, 2011 issue of the California Regulatory Notice Register (Register 2011, No. 3‑Z).
A complete, updated Proposition 65 list is published elsewhere in this issue of the California Regulatory Notice Register and is available on the OEHHA website at http://www.oehha.ca.gov/prop65.html.
Chemical |
CAS No. |
Toxicological Endpoint |
Listing Mechanism3 |
| MON 4660 (dichloroacetyl-1-oxa-4-azaspiro(4,5)-decane) | 71526-07-3 | cancer |
AB (U.S. EPA) |
| MON 13900 (furilazole) | 121776-33-8 | cancer |
AB (U.S. EPA) |
Pymetrozine |
123312-89-0 |
cancer |
AB (U.S. EPA) |
1 Health and Safety Code, section 25249.5 et seq.
2 See Health and Safety Code section 25249.8(b) and Title 27, Cal. Code of Regs., Section 25306.
3 Listing mechanism: AB – "authoritative bodies" mechanism (Title 27, Cal. Code of Regs. Section 25306).
