On April 21, 2023, the California Office of Environmental Health Hazard Assessment (OEHHA) added two carcinogenic substances, 1,1,1-trichloroethane and Malachite Green, to the list of hazardous chemicals.
California Proposition 65 adds 2 new substances to the list of hazardous chemicals
Starting from April 21, 2023, the California Office of Environmental Health Hazard Assessment (OEHHA) will add 1,1,1-trichloroethane and Malachite Green to the list of known carcinogenic chemicals in California to comply with Proposition 65. Warning requirements for significant exposure to these chemicals will be effective from April 21, 2024. Information about the two new substances is as follows:
| No. | Substance | CAS No. | Reason for proposal | Typical applications |
| 1 | 1,1,1-Trichloroethane | 71-55-6 | Carcinogenicity | It is mainly used as a metal cleaner, dry cleaning agent for textiles, and also as an adhesive, etc. |
| 2 | Leuco malachite green | 129-73-7 | Carcinogenicity | It is used as a dye for silk, leather, and paper. |
1,1,1-trichloroethane: CTT has testing capabilities;
Malachite Green: CTT currently does not have the capability, pending laboratory evaluation and development.
Companies producing products to be shipped to California should pay attention to destination regulations, adjust production standards in a timely manner to comply with relevant laws and regulations, and ensure that exported products meet the requirements of the destination.
