Is Tetrahydro-6-methylquinoline safe in cosmetics?
Tetrahydro-6-methylquinoline has a safety rating of "POOR" in our database. EU status: permitted. US status: permitted.
Poor
Cosmetic Ingredient
Tetrahydro-6-methylquinoline
INCI: NO ESTABLISHED COSMETIC INCI NAME
Tetrahydro-6-methylquinoline (CAS 91-61-2 (5,6,7,8-tetrahydro-6-methylquinoline most common isomer)) is a cosmetic cosmetic ingredient functioning as No established cosmetic function; chemical intermediate. EU Regulation 1223/2009 status: permitted. Industrial safety data is also available in the chemical safety database.
Auto-generated CPSR Part A draft with source citations
CAS Number
91-61-2 (5,6,7,8-tetrahydro-6-methylquinoline most common isomer)
View industrial chemical safety profile →
Function
No established cosmetic function; chemical intermediate
Safety Rating
POOR
Regulatory Status
EU EU Status
permitted
US US Status
permitted
US Notes
Not recognized as a cosmetic 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 Tetrahydro-6-methylquinoline.
Calculate MoS for your specific formulation with the MoS Calculator.
Expert Verdict
Expert safety assessment and concern-level summary for Tetrahydro-6-methylquinoline.
Frequently Asked Questions
Is Tetrahydro-6-methylquinoline allowed in the EU?
Tetrahydro-6-methylquinoline EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.
What does Tetrahydro-6-methylquinoline do in cosmetics?
Tetrahydro-6-methylquinoline functions as: No established cosmetic function; chemical intermediate. It is classified as a cosmetic ingredient in our database. CAS number: 91-61-2 (5,6,7,8-tetrahydro-6-methylquinoline most common isomer).
Compliance Tools
Check Tetrahydro-6-methylquinoline 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
Acrylates/Vinyl Neodecanoate Crosspolymer
Excellent
Same category
Emulsion stabilising, film forming
Adipic Acid
Excellent
Same category
Buffering
Aluminum Magnesium Oxide
Excellent
Same category
Absorbent, bulking agent, opacifying ...
Ammonium VA/Acrylates Copolymer
Excellent
Same category
Antistatic, binding, film forming, ha...
Ammonium VA/Crotonic Acid Copolymer
Excellent
Same category
Antistatic, film forming, hair fixing...
Aphanothece Sacrum Polysaccharide
Excellent
Same category
Absorbent, emulsion stabilising, film...
1,2,4-Benzenetriacetate
Poor
Similar safety
Hair dye precursor (triacetyl ester o...
1,2,4-Trihydroxybenzene
Poor
Similar safety
Hair colorant (auto-oxidative dye)
1,4-Butanediol
Poor
Similar safety
Solvent, humectant, viscosity control...
1-Nitropropane
Poor
Similar safety
None in cosmetics - industrial solven...
2,3-Epoxypropyl Cocodimonium Chloride
Poor
Similar safety
Antistatic / hair conditioning agent ...
2,3-Epoxypropyl Lauryldimonium Chloride
Poor
Similar safety
Antistatic / hair conditioning agent ...
2-Methylnaphthalene
Moderate
Chemical family
Fragrance ingredient; solvent (rarely...
Amylcinnamal Dimethyl Acetal
Moderate
Chemical family
Fragrance
Benzhydrol
Moderate
Chemical family
Perfuming (fragrance agent)
Is Tetrahydro-6-methylquinoline 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 Tetrahydro-6-methylquinoline in your formulation.