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Details

Stereochemistry ACHIRAL
Molecular Formula C4H5NOS.ClH
Molecular Weight 151.615
Optical Activity NONE
Defined Stereocenters 0 / 0
E/Z Centers 0
Charge 0

SHOW SMILES / InChI
Structure of 2-METHYL-4-ISOTHIAZOLIN-3-ONE HYDROCHLORIDE

SMILES

Cl.CN1SC=CC1=O

InChI

InChIKey=SJXPQSRCFCPWQQ-UHFFFAOYSA-N
InChI=1S/C4H5NOS.ClH/c1-5-4(6)2-3-7-5;/h2-3H,1H3;1H

HIDE SMILES / InChI

Molecular Formula C4H5NOS
Molecular Weight 115.154
Charge 0
Count
Stereochemistry ACHIRAL
Additional Stereochemistry No
Defined Stereocenters 0 / 0
E/Z Centers 0
Optical Activity NONE

Molecular Formula ClH
Molecular Weight 36.461
Charge 0
Count
Stereochemistry ACHIRAL
Additional Stereochemistry No
Defined Stereocenters 0 / 0
E/Z Centers 0
Optical Activity NONE

2-Methyl-4-isothiazolin-3-one hydrochloride is an isothiazolinone based biocide and preservative used in personal care products. 2-Methyl-4-isothiazolin-3-one is also used for controlling microbial growth in water-containing solution. It is used to study the effects of tyrosine phosphorylation on focal adhesion kinase (FAK) activity in the development of neural axons and dendrites. 2-Methyl-4-isothiazolin-3-one hydrochloride (Methylisothiazolinone hydrochloride) is a common preservative used in industrial products, owing to its strong biocide effect. Contact allergy to Methylisothiazolinone hydrochloride has been reported in different occupations, including mechanics, hairdressers and healthcare workers.

Approval Year

Conditions

Conditions

PubMed

PubMed

TitleDatePubMed
Involvement of oxidative stress in apoptosis induced by a mixture of isothiazolinones in normal human keratinocytes.
2003 Aug
Methylisothiazolinones elicit increased production of both T helper (Th)1- and Th2-like cytokines by peripheral blood mononuclear cells from contact allergic individuals.
2003 Dec
Patch test sensitization to methylchloroisothiazolinone + methylisothiazolinone and 4,4'-diaminodiphenylmethane.
2003 Jan
Studies of chemical selectivity of hapten, reactivity, and skin sensitization potency. 3. Synthesis and studies on the reactivity toward model nucleophiles of the 13C-labeled skin sensitizers, 5-chloro-2-methylisothiazol-3-one (MCI) and 2-methylisothiazol-3-one (MI).
2003 May
Contact sensitization to 5-chloro-2-methyl-4-isothiazolin-3-one and 2-methyl-4-isothiazolin-3-one in children.
2003 Oct
Co-existing sensitivity to metronidazole and isothiazolinone.
2003 Sep
[Allergy to cosmetics. II. Preservatives].
2004
From experiment to theory: molecular orbital parameters to interpret the skin sensitization potential of 5-chloro-2-methylisothiazol-3-one and 2-methylisothiazol-3-one.
2005 Feb
GSH depletion, protein S-glutathionylation and mitochondrial transmembrane potential hyperpolarization are early events in initiation of cell death induced by a mixture of isothiazolinones in HL60 cells.
2006 Feb
The impact of meteorological conditions on patch test results with 12 standard series allergens (fragrances, biocides, topical ingredients).
2008 Apr
Structure-activity relationships for the impact of selected isothiazol-3-one biocides on glutathione metabolism and glutathione reductase of the human liver cell line Hep G2.
2008 Apr 18
Alkalization of wall paint prevents airborne contact dermatitis in patients with sensitization to isothiazolinones.
2008 Aug
Disruption of FAK signaling: a side mechanism in cytotoxicity.
2008 Mar 12
Methylisothiazolinone, an emerging allergen in cosmetics?
2010 Aug
Consumer exposure to biocides--identification of relevant sources and evaluation of possible health effects.
2010 Feb 3
Final report of the safety assessment of methylisothiazolinone.
2010 Jul
Moist toilet paper: allergy to the nonhalogenated derivative methylisothiazolinone preservative alone.
2010 Oct
Prevalence and cause of methylisothiazolinone contact allergy.
2010 Sep
Methylchloroisothiazolinone and/or methylisothiazolinone in cosmetic products-A market survey.
2019 Feb
Contact allergy to methylchloroisothiazolinone/methylisothiazolinone in north-eastern Italy: a temporal trend from 1996 to 2016.
2019 May
Patents

Patents

Sample Use Guides

Methylisothiazolinone (150 uM) was able to trigger the three main key events (KE1, KE2, and KE3) of the sensitization phase of ACD in THP-1 cells.
Substance Class Chemical
Created
by admin
on Sat Dec 16 10:06:14 GMT 2023
Edited
by admin
on Sat Dec 16 10:06:14 GMT 2023
Record UNII
3G9PNZ5P41
Record Status Validated (UNII)
Record Version
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Name Type Language
2-METHYL-4-ISOTHIAZOLIN-3-ONE HYDROCHLORIDE
Systematic Name English
3(2H)-ISOTHIAZOLONE, 2-METHYL-, HYDROCHLORIDE
Systematic Name English
Code System Code Type Description
PUBCHEM
117746
Created by admin on Sat Dec 16 10:06:14 GMT 2023 , Edited by admin on Sat Dec 16 10:06:14 GMT 2023
PRIMARY
CAS
26172-54-3
Created by admin on Sat Dec 16 10:06:14 GMT 2023 , Edited by admin on Sat Dec 16 10:06:14 GMT 2023
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RXCUI
1804258
Created by admin on Sat Dec 16 10:06:14 GMT 2023 , Edited by admin on Sat Dec 16 10:06:14 GMT 2023
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ECHA (EC/EINECS)
247-499-3
Created by admin on Sat Dec 16 10:06:14 GMT 2023 , Edited by admin on Sat Dec 16 10:06:14 GMT 2023
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EPA CompTox
DTXSID1040740
Created by admin on Sat Dec 16 10:06:14 GMT 2023 , Edited by admin on Sat Dec 16 10:06:14 GMT 2023
PRIMARY
DAILYMED
3G9PNZ5P41
Created by admin on Sat Dec 16 10:06:14 GMT 2023 , Edited by admin on Sat Dec 16 10:06:14 GMT 2023
PRIMARY
FDA UNII
3G9PNZ5P41
Created by admin on Sat Dec 16 10:06:14 GMT 2023 , Edited by admin on Sat Dec 16 10:06:14 GMT 2023
PRIMARY