Is Butyrolactonethiol safe in cosmetics?
Butyrolactonethiol has a safety rating of "POOR" in our database. EU status: permitted. US status: permitted.
Poor
Cosmetic Ingredient
Butyrolactonethiol
INCI: BUTYROLACTONETHIOL
Butyrolactonethiol (CAS 14032-62-3) is a cosmetic cosmetic ingredient functioning as Reducing agent. EU Regulation 1223/2009 status: permitted. Industrial safety data is also available in the chemical safety database. Same-CAS public records also appear in industrial chemical safety data.
View industrial chemical safety profile for CAS 14032-62-3 →
Auto-generated CPSR Part A draft with source citations
Function
Reducing agent
Safety Rating
POOR
Chemistry & Identifiers
IUPAC Name
3-sulfanyloxolan-2-one
InChIKey
SUWCVSZZLFOSJL-UHFFFAOYSA-N
Regulatory Status
EU EU Status
permitted
US US Status
permitted
US Notes
Not established. No dermal exposure or NOAEL data.
For full compliance data across multiple jurisdictions, use the Substance Compliance tool.
Safety Data
Margin of Safety, dermal absorption, and sensitization profile summaries for Butyrolactonethiol.
Calculate MoS for your specific formulation with the MoS Calculator.
Function Categories & List Membership
Cosmetic/Chemical Function Categories
Hair waving or straightening
Reducing agent
Expert Verdict
Expert safety assessment and concern-level summary for Butyrolactonethiol.
Regulatory Flags
potential-allergen
Chemical Function
Reducing agent
Hair waving or straightening
Frequently Asked Questions
Is Butyrolactonethiol allowed in the EU?
Butyrolactonethiol EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.
What does Butyrolactonethiol do in cosmetics?
Butyrolactonethiol functions as: Reducing agent. It is classified as a cosmetic ingredient in our database. CAS number: 14032-62-3.
Is Butyrolactonethiol used outside cosmetics?
Butyrolactonethiol also appears in industrial chemical safety data. The cross-vertical cards on this page render same-CAS public rows from the matched databases.
Compliance Tools
Check Butyrolactonethiol compliance across multiple jurisdictions:
Ingredient Decoder
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82 Allergen Checker
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Substance Compliance
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MoS Calculator
Calculate Margin of Safety using SCCS methodology
Heavy Metal Limits
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