CI 42080 (Acid Blue 7 / Patent Blue AS)

INCI: CI 42080

CAS Number
3486-30-4
Function
Colorant. Synthetic triphenylmethane blue dye (Acid Blue 7, also known as Patent Blue AS). Imparts blue coloration to cosmetic and personal care products. Water-soluble anionic sulfonated dye in the triphenylmethane family. Structurally related to Patent Blue V (CI 42051) and Brilliant Blue FCF (CI 42090). EU-permitted for rinse-off cosmetic applications only. Not authorized for use in hair dye products per EU restrictions.
Safety Rating
MODERATE

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status restricted
EU Max Conc. Annex IV Entry IV/62 - rinse-off applications only, no maximum concentration specified
๐Ÿ‡บ๐Ÿ‡ธ US Status prohibited
US Notes CI 42080 (Acid Blue 7 / Patent Blue AS) is NOT listed on the FDA Color Additives Permitted for Use in Cosmetics (21 CFR Parts 73, 74, or 82). It does not appear on the official FDA cosmetic color additive permitted list. Use in US cosmetics is not explicitly authorized.

For full compliance data across 55 jurisdictions, use the Substance Compliance tool.

Safety Data

Margin of Safety (MoS)
not established
Dermal Absorption
low
Sensitization
low

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

CI 42080 (Acid Blue 7 / Patent Blue AS) is a triphenylmethane dye restricted to rinse-off cosmetics under EU Annex IV but lacks FDA authorization for US cosmetic use, creating cross-jurisdictional compliance challenges.

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Concern Level: Moderate

Regulatory Flags

eu-annex-iv rinse-off-only-eu not-fda-listed no-us-authorization triphenylmethane-dye water-soluble sulfonated leave-on-prohibited-eu related-to-patent-blue-v

Frequently Asked Questions

Is CI 42080 (Acid Blue 7 / Patent Blue AS) safe in cosmetics?

CI 42080 (Acid Blue 7 / Patent Blue AS) is a triphenylmethane dye restricted to rinse-off cosmetics under EU Annex IV but lacks FDA authorization for US cosmetic use, creating cross-jurisdictional compliance challenges. The EU classifies CI 42080 (Acid Blue 7 / Patent Blue AS) as "restricted". Safety rating: MODERATE.

Is CI 42080 (Acid Blue 7 / Patent Blue AS) allowed in the EU?

CI 42080 (Acid Blue 7 / Patent Blue AS) EU regulatory status: restricted. Maximum allowed concentration: Annex IV Entry IV/62 - rinse-off applications only, no maximum concentration specified. This is based on EU Regulation 1223/2009 and its amendments.

What does CI 42080 (Acid Blue 7 / Patent Blue AS) do in cosmetics?

CI 42080 (Acid Blue 7 / Patent Blue AS) functions as: Colorant. Synthetic triphenylmethane blue dye (Acid Blue 7, also known as Patent Blue AS). Imparts blue coloration to cosmetic and personal care products. Water-soluble anionic sulfonated dye in the triphenylmethane family. Structurally related to Patent Blue V (CI 42051) and Brilliant Blue FCF (CI 42090). EU-permitted for rinse-off cosmetic applications only. Not authorized for use in hair dye products per EU restrictions.. It is classified as a cosmetic ingredient in our database. CAS number: 3486-30-4.

What is the Margin of Safety for CI 42080 (Acid Blue 7 / Patent Blue AS)?

not established 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.

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