Record Information
Version1.0
Creation Date2016-05-19 03:37:20 UTC
Update Date2016-10-28 10:02:55 UTC
Accession NumberCHEM011347
Identification
Common Name3(2H)-Isothiazolone, 5-chloro-2-methyl-
ClassSmall Molecule
DescriptionA 1,2-thiazole that is 4-isothiazolin-3-one bearing a methyl group on the nitrogen atom and a chlorine at C-5. It is a powerful biocide and preservative and is the major active ingredient in the commercial product Kathon(TM).
Contaminant Sources
  • Cosmetic Chemicals
  • HPV EPA Chemicals
  • STOFF IDENT Compounds
  • ToxCast & Tox21 Chemicals
Contaminant TypeNot Available
Chemical Structure
Thumb
Synonyms
ValueSource
2,3-Dihydro-2-methyl-3-oxo-5-chloroisothiazoleChEBI
5-Chloro-2-methyl-2H-isothiazol-3-oneChEBI
CMITChEBI
MCIChEBI
MethylchloroisothiazolinoneChEBI
5-Chloro-2-methyl-4-isothiazolin-3-one hydrochlorideHMDB
5-Chloro-2-methylisothiazolin-3-oneHMDB
5-Chloro-N-methylisothiazoloneHMDB
5243-K-CGHMDB
Methylchloro-isothiazolinoneHMDB
5-chloro-2-Methyl-4-isothiazolin-3-oneChEBI
Chemical FormulaC4H4ClNOS
Average Molecular Mass149.590 g/mol
Monoisotopic Mass148.970 g/mol
CAS Registry Number26172-55-4
IUPAC Name5-chloro-2-methyl-2,3-dihydro-1,2-thiazol-3-one
Traditional Namemethylchloroisothiazolinone
SMILESCN1SC(Cl)=CC1=O
InChI IdentifierInChI=1S/C4H4ClNOS/c1-6-4(7)2-3(5)8-6/h2H,1H3
InChI KeyDHNRXBZYEKSXIM-UHFFFAOYSA-N
Chemical Taxonomy
Description belongs to the class of organic compounds known as aryl chlorides. These are organic compounds containing the acyl chloride functional group.
KingdomOrganic compounds
Super ClassOrganohalogen compounds
ClassAryl halides
Sub ClassAryl chlorides
Direct ParentAryl chlorides
Alternative Parents
Substituents
  • Aryl chloride
  • Azole
  • Thiazole
  • Vinylogous halide
  • Heteroaromatic compound
  • Lactam
  • Azacycle
  • Organoheterocyclic compound
  • Organic nitrogen compound
  • Hydrocarbon derivative
  • Organic oxide
  • Organooxygen compound
  • Organonitrogen compound
  • Organochloride
  • Organopnictogen compound
  • Organic oxygen compound
  • Aromatic heteromonocyclic compound
Molecular FrameworkAromatic heteromonocyclic compounds
External Descriptors
Biological Properties
StatusDetected and Not Quantified
OriginNot Available
Cellular LocationsNot Available
Biofluid LocationsNot Available
Tissue LocationsNot Available
PathwaysNot Available
ApplicationsNot Available
Biological RolesNot Available
Chemical RolesNot Available
Physical Properties
StateNot Available
AppearanceNot Available
Experimental Properties
PropertyValue
Melting PointNot Available
Boiling PointNot Available
SolubilityNot Available
Predicted Properties
PropertyValueSource
Water Solubility50 g/LALOGPS
logP0.85ALOGPS
logP1.35ChemAxon
logS-0.48ALOGPS
pKa (Strongest Basic)-6.9ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count1ChemAxon
Hydrogen Donor Count0ChemAxon
Polar Surface Area20.31 ŲChemAxon
Rotatable Bond Count0ChemAxon
Refractivity44.52 m³·mol⁻¹ChemAxon
Polarizability13.12 ųChemAxon
Number of Rings1ChemAxon
Bioavailability1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterNoChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleNoChemAxon
Spectra
Spectra
Spectrum TypeDescriptionSplash KeyView
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positivesplash10-054k-9500000000-68f5d84268455993bdb6Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, PositiveNot AvailableSpectrum
LC-MS/MSLC-MS/MS Spectrum - 90V, Positivesplash10-0002-3900000000-2a55b34650b2e512a693Spectrum
LC-MS/MSLC-MS/MS Spectrum - 30V, Positivesplash10-000t-0900000000-8c78dc98fbf82c9922b4Spectrum
LC-MS/MSLC-MS/MS Spectrum - 40V, Positivesplash10-001i-0900000000-674b8dc7389cd8ef7262Spectrum
LC-MS/MSLC-MS/MS Spectrum - 20V, Positivesplash10-0002-0900000000-96192c9d45e3b39f419fSpectrum
LC-MS/MSLC-MS/MS Spectrum - 10V, Positivesplash10-0002-0900000000-7e36a06489b750625c97Spectrum
LC-MS/MSLC-MS/MS Spectrum - 50V, Positivesplash10-001i-0900000000-7378138b856b29feda65Spectrum
LC-MS/MSLC-MS/MS Spectrum - 10V, Positivesplash10-0002-0900000000-78044b2240d85ace8af9Spectrum
LC-MS/MSLC-MS/MS Spectrum - 30V, Positivesplash10-000t-0900000000-20034a982117a8e572f1Spectrum
LC-MS/MSLC-MS/MS Spectrum - 20V, Positivesplash10-0002-0900000000-564592f9dd3e99ac4b51Spectrum
LC-MS/MSLC-MS/MS Spectrum - 40V, Positivesplash10-001i-0900000000-15d073b0c1c47b0885b9Spectrum
LC-MS/MSLC-MS/MS Spectrum - 60V, Positivesplash10-0002-0900000000-df97f5190da9b7a46308Spectrum
LC-MS/MSLC-MS/MS Spectrum - 30V, Positivesplash10-0002-0900000000-785cfb0de30188505c89Spectrum
LC-MS/MSLC-MS/MS Spectrum - 45V, Positivesplash10-0002-0900000000-8b731d4f32189cf082fbSpectrum
LC-MS/MSLC-MS/MS Spectrum - 75V, Positivesplash10-0002-1900000000-8fec02d9ac99bc5a7729Spectrum
LC-MS/MSLC-MS/MS Spectrum - 75V, Positivesplash10-0002-1900000000-f13457b07748be694cf3Spectrum
LC-MS/MSLC-MS/MS Spectrum - 35V, Positivesplash10-060r-0900000000-b6601bfc44226804886fSpectrum
LC-MS/MSLC-MS/MS Spectrum - 90V, Positivesplash10-0002-3900000000-3337af54e1a2c6d4c5ffSpectrum
LC-MS/MSLC-MS/MS Spectrum - 60V, Positivesplash10-0002-0900000000-ea7dd10a062dc99e696cSpectrum
LC-MS/MSLC-MS/MS Spectrum - 20V, Positivesplash10-0002-0900000000-8bcb3e9af0db601f25d8Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-0002-0900000000-b7c5b53782ac6a2cbdc6Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-0002-6900000000-0c6ca831174b750a0e98Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0002-3900000000-5aedd9507c7a73802442Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-0002-0900000000-992aecad0ae67768cc95Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-0002-0900000000-c88795f9fc9cbbef4b14Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-000i-9200000000-2dc91d3d9e576b59d139Spectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
1D NMR13C NMR SpectrumNot AvailableSpectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
1D NMR13C NMR SpectrumNot AvailableSpectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
1D NMR13C NMR SpectrumNot AvailableSpectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
1D NMR13C NMR SpectrumNot AvailableSpectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
1D NMR13C NMR SpectrumNot AvailableSpectrum
1D NMR13C NMR SpectrumNot AvailableSpectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
1D NMR13C NMR SpectrumNot AvailableSpectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
1D NMR13C NMR SpectrumNot AvailableSpectrum
1D NMR13C NMR SpectrumNot AvailableSpectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
1D NMR13C NMR SpectrumNot AvailableSpectrum
Toxicity Profile
Route of ExposureNot Available
Mechanism of ToxicityNot Available
MetabolismNot Available
Toxicity ValuesNot Available
Lethal DoseNot Available
Carcinogenicity (IARC Classification)Not Available
Uses/SourcesNot Available
Minimum Risk LevelNot Available
Health EffectsNot Available
SymptomsNot Available
TreatmentNot Available
Concentrations
Not Available
DrugBank IDNot Available
HMDB IDHMDB0246766
FooDB IDNot Available
Phenol Explorer IDNot Available
KNApSAcK IDNot Available
BiGG IDNot Available
BioCyc IDNot Available
METLIN IDNot Available
PDB IDNot Available
Wikipedia LinkMethylchloroisothiazolinone
Chemspider ID30800
ChEBI ID53621
PubChem Compound ID33344
Kegg Compound IDNot Available
YMDB IDNot Available
ECMDB IDNot Available
References
Synthesis ReferenceNot Available
MSDSNot Available
General References
1. https://www.ncbi.nlm.nih.gov/pubmed/?term=10416701
2. https://www.ncbi.nlm.nih.gov/pubmed/?term=20492831
3. https://www.ncbi.nlm.nih.gov/pubmed/?term=20566902
4. https://www.ncbi.nlm.nih.gov/pubmed/?term=21616561
5. https://www.ncbi.nlm.nih.gov/pubmed/?term=22994269
6. https://www.ncbi.nlm.nih.gov/pubmed/?term=23510348
7. https://www.ncbi.nlm.nih.gov/pubmed/?term=23510349
8. Barupal DK, Fiehn O: Generating the Blood Exposome Database Using a Comprehensive Text Mining and Database Fusion Approach. Environ Health Perspect. 2019 Sep;127(9):97008. doi: 10.1289/EHP4713. Epub 2019 Sep 26.