Mercaptoisopropyl-5-Methylcyclohexanone

Also known as: Cyclohexanone, 2-(1-mercapto-1-methylethyl)-5-methyl-, EINECS 253-953-1, FEMA No. 3177, 8-Mercapto-p-menthane-3-one, 8-Mercapto-p-menthan-3-one (+2 more)

INCI: MERCAPTOISOPROPYL-5-METHYLCYCLOHEXANONE

Mercaptoisopropyl-5-Methylcyclohexanone (CAS 38462-22-5) is a cosmetic cosmetic ingredient functioning as Fragrance ingredient - sulfur-containing aroma compound contributing to perfume. 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 and food safety data.

View industrial chemical safety profile for CAS 38462-22-5 →

Auto-generated CPSR Part A draft with source citations
Function
Fragrance ingredient - sulfur-containing aroma compound contributing to perfume compositions.
Safety Rating
MODERATE

Chemistry & Identifiers

Formula
C10H18OS
MW
186.32 g/mol
PubChem CID
61982
IUPAC Name
5-methyl-2-(2-sulfanylpropan-2-yl)cyclohexan-1-one
InChIKey
RVOKNSFEAOYULQ-UHFFFAOYSA-N

Regulatory Status

EU EU Status permitted
US US Status permitted
US Notes Allowed in cosmetics as a fragrance component; no specific prohibition.

For full compliance data across multiple jurisdictions, use the Substance Compliance tool.

Safety Data

Margin of Safety, dermal absorption, and sensitization profile summaries for Mercaptoisopropyl-5-Methylcyclohexanone.

Calculate MoS for your specific formulation with the MoS Calculator.

PubChem Annotations

Safety and regulatory annotations from PubChem (NCBI) aggregated sources.

Regulatory (3)
JECFA Number
561
Source: Joint FAO/WHO Expert Committee on Food Additives (JECFA)
JECFA Evaluation
8-MERCAPTO-p-MENTHANE-3-ONE | 1999 | No safety concern at current levels of intake when used as a flavouring agent | TRS 896-JECFA 53/32 | FAS 44-JECFA 53/125
Source: Joint FAO/WHO Expert Committee on Food Additives (JECFA)
JECFA Evaluation
p-MENTHA-8-THIOL-3-ONE | 1999 | No safety concern at current levels of intake when used as a flavouring agent | TRS 896-JECFA 53/32 | FAS 44-JECFA 53/125
Source: Joint FAO/WHO Expert Committee on Food Additives (JECFA)

Function Categories & List Membership

Cosmetic/Chemical Function Categories
Flavouring and nutrient Fragrance
Regulatory List Membership (4)
IFRA Fragrance Transparency List EPA Safer Chemical Ingredients List (SCIL) FDA Substances Added to Food (EAFUS) Consumer Product Chemical

Expert Verdict

Expert safety assessment and concern-level summary for Mercaptoisopropyl-5-Methylcyclohexanone.

Regulatory Flags

potential-allergen fragrance-component epa_safer_alternative ifra_fragrance fda_food_additive

Known Synonyms

Cyclohexanone, 2-(1-mercapto-1-methylethyl)-5-methyl- EINECS 253-953-1 FEMA No. 3177 8-Mercapto-p-menthane-3-one 8-Mercapto-p-menthan-3-one 2-(1-Mercapto-1-methylethyl)-5-methylcyclohexanone UNII-9BM9FFW27E

Chemical Function

Fragrance Flavouring and nutrient

Regulatory Lists

Europe SCIL (9/2019) IFRA Transparency food_additive; Substances Added to Food (formerly EAFUS) (2/2019) consumer_product

Australian Status

AICIS status: listed

Cross-Vertical Safety Context

Same-CAS public records found in food safety data.

SOURCE EFSA / FDA GRAS food_additives

Food Safety Data

Same-CAS food additive or FDA GRAS records from the core public database.

Food Name
P-MENTHA-8-THIOL-3-ONE
ADI
No safety concern at current levels of intake when used as a flavouring agent mg/kg bw
Food Category
flavoring
View full food safety profile →

Frequently Asked Questions

Is Mercaptoisopropyl-5-Methylcyclohexanone safe in cosmetics?

Mercaptoisopropyl-5-Methylcyclohexanone has a safety rating of "MODERATE" in our database. EU status: permitted. US status: permitted.

Is Mercaptoisopropyl-5-Methylcyclohexanone allowed in the EU?

Mercaptoisopropyl-5-Methylcyclohexanone EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Mercaptoisopropyl-5-Methylcyclohexanone do in cosmetics?

Mercaptoisopropyl-5-Methylcyclohexanone functions as: Fragrance ingredient - sulfur-containing aroma compound contributing to perfume compositions.. It is classified as a cosmetic ingredient in our database. CAS number: 38462-22-5.

Is Mercaptoisopropyl-5-Methylcyclohexanone used outside cosmetics?

Mercaptoisopropyl-5-Methylcyclohexanone also appears in industrial chemical safety and food safety data. The cross-vertical cards on this page render same-CAS public rows from the matched databases.

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