2-Methyl-1-Naphthol
Regulatory Status
For full compliance data across 55 jurisdictions, use the Substance Compliance tool.
Safety Data
Calculate MoS for your specific formulation with the MoS Calculator.
Toxicological Studies
2 study endpoints found for 2-Methyl-1-Naphthol. NOAEL (No Observed Adverse Effect Level) values are used to calculate the Margin of Safety per SCCS methodology.
| Endpoint | Value | Route | Species | Study Type | Source |
|---|---|---|---|---|---|
| NOAEL | 75 mg/kg bw/day | oral | rat | Developmental | COSMOS_DB |
| LOAEL | 225 mg/kg bw/day | oral | rat | Developmental | COSMOS_DB |
Expert Verdict
Restricted oxidative hair dye coupler with concentration limits; not permitted for fragrance use; requires patch-test warning and full hair dye labeling compliance.
Regulatory Flags
Frequently Asked Questions
Is 2-Methyl-1-Naphthol safe in cosmetics?
Restricted oxidative hair dye coupler with concentration limits; not permitted for fragrance use; requires patch-test warning and full hair dye labeling compliance. The EU classifies 2-Methyl-1-Naphthol as "restricted". Safety rating: MODERATE. 2 toxicological study endpoint(s) are available in our database.
Is 2-Methyl-1-Naphthol allowed in the EU?
2-Methyl-1-Naphthol EU regulatory status: restricted. Maximum allowed concentration: 2.0%. This is based on EU Regulation 1223/2009 and its amendments.
What does 2-Methyl-1-Naphthol do in cosmetics?
2-Methyl-1-Naphthol functions as: Dye. It is classified as a cosmetic ingredient in our database. CAS number: 7469-77-4.
What is the Margin of Safety for 2-Methyl-1-Naphthol?
adequate The Margin of Safety (MoS) is calculated using SCCS methodology. A MoS above 100 is generally considered safe. Use the MoS Calculator tool to calculate MoS for your specific formulation and product category.
What is the NOAEL for 2-Methyl-1-Naphthol?
The NOAEL (No Observed Adverse Effect Level) for 2-Methyl-1-Naphthol is 75 mg/kg bw/day based on a Developmental study via oral route in rat. A total of 2 study endpoints are available. Source: COSMOS_DB.
Compliance Tools
Check 2-Methyl-1-Naphthol compliance across multiple jurisdictions:
Related Ingredients
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