Is CI 42080 (Acid Blue 7 / Patent Blue AS) safe in cosmetics?
CI 42080 (Acid Blue 7 / Patent Blue AS) has a safety rating of "MODERATE" in our database. EU status: restricted. US status: prohibited.
Moderate
Cosmetic Ingredient
CI 42080 (Acid Blue 7 / Patent Blue AS)
Also known as: Benzenemethanaminium, N-[4-[(2,4-disulfophenyl)[4-[ethyl(phenylmethyl)amino]phenyl]methylene]-2,5-cyclohexadien-1-ylidene]-N-ethyl-, inner salt, sodium salt (1:1), Benzenemethanaminium, N-[4-[(2,4-disulfophenyl)[4-[ethyl(phenylmethyl)amino]phenyl]methylene]-2,5-cyclohexadien-1-ylidene]-N-ethyl-, hydroxide, inner salt, sodium salt, C.I. Acid Blue 7, sodium salt
INCI: CI 42080
CI 42080 (Acid Blue 7 / Patent Blue AS) (CAS 3486-30-4) is a cosmetic cosmetic ingredient functioning as Colorant. Synthetic triphenylmethane blue dye (Acid Blue 7, also known as. EU Regulation 1223/2009 status: restricted, max Annex IV Entry IV/62 - rinse-off applications only, no maximum concentration specified. 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 3486-30-4 →
Auto-generated CPSR Part A draft with source citations
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
Chemistry & Identifiers
IUPAC Name
sodium 4-[[4-[benzyl(ethyl)amino]phenyl]-[4-[benzyl(ethyl)azaniumylidene]cyclohexa-2,5-dien-1-ylidene]methyl]benzene-1,3-disulfonate
InChIKey
FTUYQIPAPWPHNC-UHFFFAOYSA-M
Regulatory Status
EU EU Status
restricted
EU Max Conc.
Annex IV Entry IV/62 - rinse-off applications only, no maximum concentration specified
US 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 multiple jurisdictions, use the Substance Compliance tool.
Safety Data
Margin of Safety, dermal absorption, and sensitization profile summaries for CI 42080 (Acid Blue 7 / Patent Blue AS).
Calculate MoS for your specific formulation with the MoS Calculator.
ECHA REACH Registration
European Chemicals Agency REACH dossier and Substances of Very High Concern listing.
Registration Type
Full
Tonnage Band
1 - 10 tonnes
Substance Type
SUBSTANCE
SVHC Candidate
No
EU CosIng Annex Listing
European Commission CosIng database Annex references per Regulation (EC) No 1223/2009.
Annex IV — Permitted Colorants
Product type: Blue
Expanded Jurisdictional Detail
Additional regulatory detail beyond the 7-jurisdiction summary: Saudi SFDA, Korea MFDS, ASEAN ACD, Japan/Korea, Brazil/India, and cross-jurisdictional restriction entries.
SA Saudi SFDA (IV - Colorants)
Product type: Rinse-off products.
BRIN Brazil/India Cosmetics
India: Permitted Colorant
Function Categories & List Membership
Cosmetic/Chemical Function Categories
Dye
Expert Verdict
Expert safety assessment and concern-level summary for CI 42080 (Acid Blue 7 / Patent Blue AS).
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
Known Synonyms
Benzenemethanaminium, N-[4-[(2,4-disulfophenyl)[4-[ethyl(phenylmethyl)amino]phenyl]methylene]-2,5-cyclohexadien-1-ylidene]-N-ethyl-, inner salt, sodium salt (1:1)
Benzenemethanaminium, N-[4-[(2,4-disulfophenyl)[4-[ethyl(phenylmethyl)amino]phenyl]methylene]-2,5-cyclohexadien-1-ylidene]-N-ethyl-, hydroxide, inner salt, sodium salt
C.I. Acid Blue 7, sodium salt
Chemical Function
Dye
Regulatory Lists
inert_ingredient; non_food_use; Pesticides
Australian Status
AICIS status: listed
Frequently Asked Questions
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.
Is CI 42080 (Acid Blue 7 / Patent Blue AS) used outside cosmetics?
CI 42080 (Acid Blue 7 / Patent Blue AS) 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 CI 42080 (Acid Blue 7 / Patent Blue AS) 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
CI 40800 (Beta-Carotene)
Excellent
Same category
Colorant. Synthetic or naturally deri...
CI 75130 (Beta-Carotene)
Excellent
Same category
Colorant. Synthetic or plant-derived ...
CI 75170 (Guanine)
Excellent
Same category
Colorant. Natural crystalline materia...
CI 77004 (Kaolin)
Excellent
Same category
Colorant. Natural white clay mineral ...
CI 77007 (Ultramarine Blue)
Excellent
Same category
Colorant. Inorganic mineral pigment s...
CI 77019 (Mica)
Excellent
Same category
Colorant; Opacifying Agent; Bulking A...
(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
PALMATINE
Good
Chemical family
Antioxidant
Smithsonite
Good
Chemical family
Skin protecting, bulking agent, opaci...
Zinc Carbonate
Good
Chemical family
Opacifying agent
Is CI 42080 (Acid Blue 7 / Patent Blue AS) 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 CI 42080 (Acid Blue 7 / Patent Blue AS) in your formulation.