23 November 2018, the Office of Environmental Health Hazard Assessment (OEHHA) is adding gentian violet and N-nitrosohexamethyleneimine to the list of Prop 65. At a public meeting on November 1, 2018, the Carcinogen Identification Committee (CIC) in its official capacity as the "state's qualified experts" (SQE)[2] determined that gentian violet and N-nitrosohexamethyleneimine were clearly shown by scientifically valid testing.

Gentian violet,prop 65,list,substances,testing

The information of two substances is as follows:

Chemical

CAS No.

Toxicological Endpoints

Listing Mechanism*

Effective Date

Gentian violet (Crystal violet)

548-62-9

Cancer

SQE

November 23, 2018

N-Nitrosohexamethyleneimine

932-83-2

Cancer

SQE

November 23, 2018

* Listing mechanism:  SQE – “State’s Qualified Expert” mechanism (Health and Safety Code section 25249.8(b) and Title 27, Cal. Code of Regs., section 25305(a)(1)).

Gentian violet is often used in the ink, toner and textile dyeing. It also can be used medically as disinfectant, preservative, cosmetics hair dye.

The California law requires manufacturers and retailers to warn workers and consumers exposed to chemicals on the list.

C&K Testing reminds enterprises to pay attention to the updating of the Prop 65 list, and strengthen the cooperation with professional testing agencies to prevent the subsequent risk.



|Further Information:

The Notice of Listing 2 Substances under Prop 65

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Prop 65

Chemical Testing