Food use
Nothing to weigh for this context yet.
We have no published hazard signal for this ingredient, so we cannot say how it behaves in this context — that is missing evidence, not a clean result.
- beauty
- cleaning
- industrial
5-Chloro-2-methyl-3(2H)-isothiazolone
CAS 26172-55-4
Also registered as 2 other CAS numbers
137086-87-4 · 137662-59-0
Concern score
Not assessed — no hazard data yet.
5-Chloro-2-methyl-3(2H)-isothiazolone in plain language
Also known as Methylchloroisothiazolinone · 5-Chloro-2-methyl-4-isothiazolin-3-one · 5-CHLOR-2-METHYL-4-ISOTHIAZOLIN-3-ONE · 5-Chloro-2-methyl-1,2-thiazol-3(2H)-one · 5-chloro-2-methyl-1,2-thiazol-3-one · 2-METHYL-5-CHLORO isothiazolinone
Show all 29 names
2-Methyl-5-chloro-3-isothiazolone · 2-Methyl-5-chloroisothiazolin-3-one · 3(2H)-Isothiazolone, 5-chloro-2-methyl- · 5-CHLORO-2-METHYL-3(2H)-ISOTHIAZOLINONE · 5-CHLORO-2-METHYL-3-ISOTHIAZOLONE · 5-CHLORO-2-METHYL-ISOTHIAZOL-3-ONE · 5-CHLORO-2-METHYLISOTHIAZOLIN-3-ONE · 5-CHLORO-N-METHYLISOTHIAZOLIN-3-ONE · 5-CHLORO-N-METHYLISOTHIAZOLONE · 5-Chlor-2-methyl-2H-isothiazol-3-on · 5-Chloro-2-methyl-2H-isothiazol-3-one · 5-chloro-2-methyl-2H-isothiazole-3-one · 5-chloro-2-methyl-4-isothioazolin-3-one · 5-chloro-2-methyl-4-isothioazolin-3-one%: 0.0001-0.001 · 5-chloro-2-methylisothiazol-3(2h)-one · A 33 · Cmit · Chloromethylisothiazolinone · Hs 818 · Kathon CG 5243 · N-METHYL-5-CHLOROISOTHIAZOLIN-3-ONE · N-METHYL-5-CHLOROISOTHIAZOLONE · Neolone 950
Used in consumer products as an antioxidant, a preservative and a fragrance ingredient.
- Antioxidant
- Preservative
- Fragrance
- Antimicrobial
- We haven't assessed a concern score for this ingredient yet.
Regulation
No restrictions found. 5-Chloro-2-methyl-3(2H)-isothiazolone appears in these published regulatory listings.
- Found in consumer products
- Beauty
- Cleaning
- Industrial
USEPAcommercial use observedEPA CPDat observed this chemical in 6578 composition records across product categories including Laboratory supplies, Cleaning and safety, Home maintenance. EPA CPDat classifies this chemical for functional uses including Preservative, Antioxidant, Biocide.
- EPA CPDat observed this chemical in 6578 composition records across product categories including Laboratory supplies, Cleaning and safety, Home maintenance. EPA CPDat classifies this chemical for functional uses including Preservative, Antioxidant, Biocide.Source →
USFDAlisted in openFDA substanceopenFDA substance registry classifies this ingredient as chemical.
- openFDA substance registry classifies this ingredient as chemical.Source →
Expert safety opinions
No expert opinion on file for 5-Chloro-2-methyl-3(2H)-isothiazolone. These are the independent scientific bodies that assess ingredients like this one; we show an opinion only when a record we hold cites it.
SCCS
EU Scientific Committee on Consumer Safety
No SCCS opinion on file.
CIR
Cosmetic Ingredient Review (US expert panel)
No CIR safety assessment on file.
Evidence & sources
No graded research studies for 5-Chloro-2-methyl-3(2H)-isothiazolone yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.
Where this comes from
Suitability
Context-specific fit derived from published classifications and the current ingredient evidence profile.
No signal in this context
Fragrance avoidance
Not a strong fit for fragrance avoidance because it carries Fragrance.
The ingredient itself is a fragrance-linked signal, so it is better treated as an avoid case when fragrance exposure is the main concern.
Where it has been recorded
How often EPA CPDat has listed 5-Chloro-2-methyl-3(2H)-isothiazolone in a product composition. These are source records, not Greenveil catalog products.
Source records
6,578
Named organisations
6
Laboratory suppliesCleaning and safetyHome maintenanceConstructionRaw materialsSpecialty occupational products
Typical roles
AntioxidantPreservativeFragranceAntimicrobial
Found in these products
Their ingredient lists include 5-Chloro-2-methyl-3(2H)-isothiazolone; each product's own rating depends on its whole formula, so it is shown on the product page, not here.
- True Dent DentrifriceNon Food Products
- ChampoingsPantene · Non Food Products
- Coconut MilkHerbal Essences · Health Beauty
- Marocpantene · Cosmetic Products
- Golden Moringa Oil ShampooHerbal Essences · Health Beauty
- Jessys
- Tratamiento Mais CachosSkala Expert, Skala · Haarmasker
- Champú PANTENEttyw · Non Food Products
- penteneNon Food Products
- Coconut MilkHerbal Essences · Hair
- Pantene Pro-V ShampooPantene · Shampoos
- au lait 700mlpantene
- Gel shampooing douche AgrumesCarrefour, Produits blancs · Hair
- Gel Douche Lait d'AmandeTaous · Cosmetic Products
- Felce AzzurraPaglieri
- malizia argan
- lait de douche vanille 2lByphasse · Cosmetic Products
- Piel sana gel de duchaInstituto Español
- Dettol Liquid HandwashDettol · Liquid Handwash
- Leche de coco champúHerbal Essences · Non Open Products Facts
- Gel de baño hidratante de avenaInstituto Español
- Dettol Icy Cool Body WashDettol · Hygiene
- jabón en cremaamalfi · S
- HEAD& SHOULDER CITRUS FRESH
Often appears with
Ingredients that frequently appear alongside 5-Chloro-2-methyl-3(2H)-isothiazolone in the catalog.