Is 3-Methyl-3-Octanol safe in cosmetics?
3-Methyl-3-Octanol has a safety rating of "MODERATE" in our database. EU status: permitted. US status: permitted.
Moderate
Cosmetic Ingredient
3-Methyl-3-Octanol
Also known as: 3-Octanol, 3-methyl-, 3-methyloctan-3-ol, 3-methyl-3-octenol
INCI: 3-METHYL-3-OCTANOL
3-Methyl-3-Octanol (CAS 5340-36-3) is a cosmetic cosmetic ingredient functioning as Perfuming / Fragrance. 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 5340-36-3 →
Auto-generated CPSR Part A draft with source citations
Function
Perfuming / Fragrance
Safety Rating
MODERATE
Chemistry & Identifiers
IUPAC Name
3-methyloctan-3-ol
InChIKey
JEWXYDDSLPIBBO-UHFFFAOYSA-N
Regulatory Status
EU EU Status
permitted
US US Status
permitted
US Notes
Not restricted by FDA; permitted for use in cosmetics under general safety provisions (no CIR review specific to this ingredient)
For full compliance data across multiple jurisdictions, use the Substance Compliance tool.
Safety Data
Margin of Safety, dermal absorption, and sensitization profile summaries for 3-Methyl-3-Octanol.
Calculate MoS for your specific formulation with the MoS Calculator.
HRIPT Human Patch Test Studies
1 human repeat insult patch test aggregated from dermatological literature.
| Test Type | N | Sensitized | Dose µg/cm² | NESIL µg/cm² | Potency |
|---|---|---|---|---|---|
| HMT | - | 0 | 6750 | - | - |
Function Categories & List Membership
Cosmetic/Chemical Function Categories
Fragrance
Expert Verdict
Expert safety assessment and concern-level summary for 3-Methyl-3-Octanol.
Regulatory Flags
fragrance-component
Known Synonyms
3-Octanol, 3-methyl-
3-methyloctan-3-ol
3-methyl-3-octenol
Chemical Function
Fragrance
Australian Status
AICIS status: listed
Frequently Asked Questions
Is 3-Methyl-3-Octanol allowed in the EU?
3-Methyl-3-Octanol EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.
What does 3-Methyl-3-Octanol do in cosmetics?
3-Methyl-3-Octanol functions as: Perfuming / Fragrance. It is classified as a cosmetic ingredient in our database. CAS number: 5340-36-3.
Is 3-Methyl-3-Octanol used outside cosmetics?
3-Methyl-3-Octanol 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 3-Methyl-3-Octanol compliance across multiple jurisdictions:
Ingredient Decoder
Paste a full ingredient list for instant analysis
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
Compare limits across jurisdictions
Related Ingredients
2,6-Dimethyl-7-octen-2-ol (Dihydromyrcenol)
Excellent
Same category
Fragrance (perfuming), masking
2-Ethoxy-2,6,6-Trimethyl-9-Methylenebicyclo[3.3.1]Nonane (Boisiris™)
Excellent
Same category
Fragrance (rich woody, orris/iris roo...
3,6-Dimethyl-3-Octyl Acetate
Excellent
Same category
Fragrance / Perfuming agent with flor...
3-Methyl-5-(2,2,3-Trimethyl-3-Cyclopentenyl)Pent-4-En-2-Ol (Sandalore)
Excellent
Same category
Perfuming / Fragrance (sandalwood note)
4-Tert-Butylcyclohexyl Acetate
Excellent
Same category
Fragrance
Acetoin
Excellent
Same category
Skin conditioning, fragrance
(20S)-Protopanaxadiol
Moderate
Similar safety
(Cnidium Officinale/Coptis Chinensis/Glycyrrhiza Uralensis) Root Extract
Moderate
Similar safety
Skin conditioning
(Cryptomeria Japonica/Chamaecyparis Obtusa) Stem Ferment Extract
Moderate
Similar safety
Antimicrobial, antioxidant, humectant
(Eclipta Prostrata/Houttuynia Cordata) Leaf Extract
Moderate
Similar safety
Skin conditioning
(Lepidium Meyenii/Sarcodon Aspratus) Root Water
Moderate
Similar safety
Skin conditioning
(Licorice/Reynoutria Japonica) Root/Stem Extract
Moderate
Similar safety
Skin conditioning, antioxidant
3-METHYL-4-(2,4,6-TRIMETHYL-3-CYCLOHEXENYL)-3-BUTEN-2-ONE
Good
Browse nearby
Perfuming
3-METHYL-5-(2,2,3-TRIMETHYL-3-CYCLOPENTENYL)PENT-4-EN-2-OL
Good
Browse nearby
Perfuming
3-METHYL-5-PROPYL-2-CYCLOHEXENONE
Good
Browse nearby
Perfuming
Is 3-Methyl-3-Octanol in Your Products?
Scan any product label with Piro — our free ingredient scanner. Point your camera at the ingredients list and get instant safety scores for every ingredient.
Try Piro Free →Analyze Your Full Ingredient List
Paste any INCI list into the Decoder for instant safety analysis, or calculate the Margin of Safety for 3-Methyl-3-Octanol in your formulation.