METHYLCHLOROISOTHIAZOLINONE & Methylisothiazolinone (CMIT&MIT)

Category:

The mixture of 5-chloro-2-methyl-4-isothiazolin-3-one (CMIT) and 2-methyl-4-isothiazolin-3-one (MIT),  is a widely used broad-spectrum biocide and preservative (typically 3:1 ratio) for rinse-off cosmetics, and detergents. While highly effective against bacteria and fungi, this compound acts as a significant skin sensitizer and allergen.

Due to the risk of allergic contact dermatitis, its use is heavily restricted in leave-on cosmetic products.

magnesium chloride and magnesium nitrate mostly use as a stabilizing agents.

Additional information

CAS

26172-55-4, 2682-20-4, 55965-84-9
Functions

Preservative
Formula

C4H5NOS.C4H4ClNOS
Molar Mass

264.756 g/mol
Application

Rinse off products
Restriction

V/39 in Cosing
It is listed in the USA and the EU respectively as an approved cosmetic preservative at levels up to 0.0015% of active ingredients.
Trade names

ACTICIDE MV, KATHON CG
Producer

THOR,

Trade name and Producer link: