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.
Expert Verdict
Methine-type dye; monitor for degradation products; subject to concentration limits under Annex III in EU.
Regulatory Flags
Frequently Asked Questions
Is Basic Yellow 11 safe in cosmetics?
Methine-type dye; monitor for degradation products; subject to concentration limits under Annex III in EU. The EU classifies Basic Yellow 11 as "restricted". Safety rating: MODERATE.
Is Basic Yellow 11 allowed in the EU?
Basic Yellow 11 EU regulatory status: restricted. This is based on EU Regulation 1223/2009 and its amendments.
What does Basic Yellow 11 do in cosmetics?
Basic Yellow 11 functions as: Hair dyeing (semi-permanent cationic dye). It is classified as a cosmetic ingredient in our database. CAS number: 4208-80-4.
What is the Margin of Safety for Basic Yellow 11?
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.
Compliance Tools
Check Basic Yellow 11 compliance across multiple jurisdictions:
Related Ingredients
Is Basic Yellow 11 in Your Products?
Scan any product label with Piro โ our free ingredient scanner. Point your camera at the ingredients list and get instant safety scores for every ingredient.
Try Piro Free โAnalyze Your Full Ingredient List
Paste any INCI list into the Decoder for instant safety analysis, or calculate the Margin of Safety for Basic Yellow 11 in your formulation.