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Isothiazolinone
Methylisothiazolinone
Methylchloroisothiazolinone

Chemical Formula: C8H9ClN2O2S2

Synonyms

2-methyl-4-isothiazolin-3-one (MI)
5-chloro-2-methyl-4-isothiazolin-3-one (MCI)
Kathon

Description

Isothiazolinones are a class of broad spectrum biocides used as preservatives in shampoos and many other household and industrial products.

Uses

Isothiazolinones are used in cosmetics and shampoos as a biocide to kill fungus and bacteria. Unlike the preservatives DMDM hydantoin and imidazolidinyl urea also commonly used in these products, isothiazolinones do not release formaldehyde, to which some people are sensitive.

Some people are sensitive to isothiazolinones.


isothiazolinone: InChI=1/C4H4ClNOS.C4H5NOS/c1-6-4(7)2-3(5)8-6;1-5-4(6)2-3-7-5/h2H,1H3;2-3H,1H3


DMDM Hydantoin: InChI=1/C7H12N2O4/c1-7(2)5(12)8(3-10)6(13)9(7)4-11/h10-11H,3-4H2,1-2H3


Imidazolidinyl urea: InChI=1/C11H16N8O8/c20-2-18-4(6(22)16-10(18)26)14-8(24)12-1-13-9(25)15-5-7(23)17-11(27)19(5)3-21/h4-5,20-21H,1-3H2,(H2,12,14,24)(H2,13,15,25)(H,16,22,26)(H,17,23,27)/f/h12-17H


methyl paraben: InChI=1/C8H8O3/c1-11-8(10)6-2-4-7(9)5-3-6/h2-5,9H,1H3


ethyl paraben: InChI=1/C9H10O3/c1-2-12-9(11)7-3-5-8(10)6-4-7/h3-6,10H,2H2,1H3


propyl paraben: InChI=1/C10H12O3/c1-2-7-13-10(12)8-3-5-9(11)6-4-8/h3-6,11H,2,7H2,1H3


butyl paraben: InChI=1/C11H14O3/c1-2-3-8-14-11(13)9-4-6-10(12)7-5-9/h4-7,12H,2-3,8H2,1H3


heptyl paraben: InChI=1/C14H20O3/c1-2-3-4-5-6-11-17-14(16)12-7-9-13(15)10-8-12/h7-10,15H,2-6,11H2,1H3


By Simon Quellen Field


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