Is Isobutyl Stearate safe in cosmetics?
Isobutyl Stearate has a safety rating of "EXCELLENT" in our database. EU status: permitted. US status: permitted.
Excellent
Cosmetic Ingredient
Isobutyl Stearate
Also known as: 3-02-00-01017, BRN 1792857, EINECS 211-466-1, UNII-V8DPR6HNX3, Octadecanoic acid, 2-methylpropyl ester (+1 more)
INCI: ISOBUTYL STEARATE
Isobutyl Stearate (CAS 646-13-9) is a cosmetic cosmetic ingredient functioning as Emollient / skin conditioning 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 646-13-9 →
Auto-generated CPSR Part A draft with source citations
Function
Emollient / skin conditioning agent
Safety Rating
EXCELLENT
Chemistry & Identifiers
IUPAC Name
2-methylpropyl octadecanoate
InChIKey
ORFWYUFLWUWSFM-UHFFFAOYSA-N
Regulatory Status
EU EU Status
permitted
US US Status
permitted
US Notes
Permitted — CIR reviewed; FDA acknowledges CIR conclusion. 21 CFR references available for butyl stearate
For full compliance data across multiple jurisdictions, use the Substance Compliance tool.
Safety Data
Margin of Safety, dermal absorption, and sensitization profile summaries for Isobutyl Stearate.
Calculate MoS for your specific formulation with the MoS Calculator.
PubChem Annotations
Safety and regulatory annotations from PubChem (NCBI) aggregated sources.
Safety (2)
Evidence for Carcinogenicity
A4; Not classifiable as a human carcinogen. /Stearates; does not include stearates of toxic metals/
Source: Hazardous Substances Data Bank (HSDB)
Skin Eye Respiratory Irritation
A skin irritant.
Source: Hazardous Substances Data Bank (HSDB)
Function Categories & List Membership
Cosmetic/Chemical Function Categories
Flavouring and nutrient
Softener and conditioner
Regulatory List Membership (1)
FDA Indirect Food Contact Additives
Expert Verdict
Expert safety assessment and concern-level summary for Isobutyl Stearate.
Regulatory Flags
potential-allergen
Known Synonyms
3-02-00-01017
BRN 1792857
EINECS 211-466-1
UNII-V8DPR6HNX3
Octadecanoic acid, 2-methylpropyl ester
Stearic acid, isobutyl ester
Chemical Function
Softener and conditioner
Flavouring and nutrient
Regulatory Lists
Europe
CEDI
Indirect additives food contact (10/2018)
Australian Status
AICIS status: listed
Frequently Asked Questions
Is Isobutyl Stearate allowed in the EU?
Isobutyl Stearate EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.
What does Isobutyl Stearate do in cosmetics?
Isobutyl Stearate functions as: Emollient / skin conditioning agent. It is classified as a cosmetic ingredient in our database. CAS number: 646-13-9.
Is Isobutyl Stearate used outside cosmetics?
Isobutyl Stearate 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 Isobutyl Stearate compliance across multiple jurisdictions:
Ingredient Decoder
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82 Allergen Checker
Check for EU declarable fragrance allergens
Substance Compliance
Check compliance across multiple jurisdictions
MoS Calculator
Calculate Margin of Safety using SCCS methodology
Heavy Metal Limits
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DIOXOLANE
Good
Chemical family
Solvent
Dioxolane (1,3-Dioxolane)
Moderate
Chemical family
Solvent
ISOBORNYL DIPROPYLENE GLYCOL ETHERS
Good
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