Is CI 11680 (Pigment Yellow 1) safe in cosmetics?
CI 11680 (Pigment Yellow 1) has a safety rating of "MODERATE" in our database. EU status: permitted. US status: prohibited.
Moderate
Cosmetic Ingredient
CI 11680 (Pigment Yellow 1)
Also known as: Butanamide, 2-[2-(4-methyl-2-nitrophenyl)diazenyl]-3-oxo-N-phenyl-, 2-((4-Methyl-2-nitrophenyl)azo)-3-oxo-N-phenylbutyramide, Butanamide, 2-[2-(4-methyl-2-nitrophenyl)diazenyl]-3-oxo-N-phenyl-, Butanamide, 2-[(4-methyl-2-nitrophenyl)azo]-3-oxo-N-phenyl-, 2-[2-(4-Methyl-2-nitrophenyl)diazenyl]-3-oxo-N-phenylbutanamide (+15 more)
INCI: CI 11680
CI 11680 (Pigment Yellow 1) (CAS 2512-29-0) is a cosmetic cosmetic ingredient functioning as Colorant. NOAEL 1000 mg/kg bw/day (cross-referenced against ToxValDB ECHA IUCLID); EU Regulation 1223/2009 status: permitted. 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 2512-29-0 →
Auto-generated CPSR Part A draft with source citations
Function
Colorant
Safety Rating
MODERATE
Chemistry & Identifiers
IUPAC Name
2-[(4-methyl-2-nitrophenyl)diazenyl]-3-oxo-N-phenylbutanamide
InChIKey
MFYSUUPKMDJYPF-UHFFFAOYSA-N
Regulatory Status
EU EU Status
permitted
US US Status
prohibited
US Notes
Not on FDA-approved color additives list; not permitted for use in US cosmetics. Formerly known as Ext. D&C Yellow No. 5 but listing was not maintained.
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 11680 (Pigment Yellow 1).
Calculate MoS for your specific formulation with the MoS Calculator.
Pre-Calculated Safety Assessment
Pre-calculated NOAEL → SED → MoS audit trail for CI 11680 (Pigment Yellow 1) across SCCS product categories, with measured dermal absorption where available.
ECHA REACH Registration
European Chemicals Agency REACH dossier and Substances of Very High Concern listing.
Registration Type
Full
Tonnage Band
100 - 1,000 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: Yellow
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: Not to be used in products applied on mucous membranes.
BRIN Brazil/India Cosmetics
India: Permitted Colorant
Function Categories & List Membership
Cosmetic/Chemical Function Categories
Dye
Pigment
Regulatory List Membership (2)
EU Regulated in Personal Care
EU CosIng Cosmetics Ingredient Database
Expert Verdict
Expert safety assessment and concern-level summary for CI 11680 (Pigment Yellow 1).
Regulatory Flags
not-fda-approved
mucous-membrane-restricted
azo-dye
limited-safety-data
eu-annex-iv
eu_cosing_listed
Known Synonyms
Butanamide, 2-[2-(4-methyl-2-nitrophenyl)diazenyl]-3-oxo-N-phenyl-
2-((4-Methyl-2-nitrophenyl)azo)-3-oxo-N-phenylbutyramide
Butanamide, 2-[2-(4-methyl-2-nitrophenyl)diazenyl]-3-oxo-N-phenyl-
Butanamide, 2-[(4-methyl-2-nitrophenyl)azo]-3-oxo-N-phenyl-
2-[2-(4-Methyl-2-nitrophenyl)diazenyl]-3-oxo-N-phenylbutanamide
α-(o-Nitro-p-tolylazo)acetoacetanilide
Accosperse Hansa Yellow G
Acrylamide Yellow G
ADC Pigment Yellow G
Arylamide Yellow G
Brazil Yellow X 2866
Burma Yellow X 1622
Calcotone Hansa Yellow
Carnelio Yellow G
Chromatex Yellow J
Dainichi Fast Yellow G
EINECS 219-730-8
Eljon Fast Yellow GN-GX
Eljon Fast Yellow PV Extra
Ext D and C Yellow No. 5
Chemical Function
Dye
Pigment
Regulatory Lists
Arts and crafts/Office supplies - body paint - tattoo ink; Europe
Europe; plastic_additive
inert_ingredient; non_food_use; Pesticides
Europe; Toys and children's products
Arts and crafts/Office supplies - body paint - tattoo ink; Europe
Europe; Personal care
Australian Status
AICIS status: listed
Frequently Asked Questions
Is CI 11680 (Pigment Yellow 1) allowed in the EU?
CI 11680 (Pigment Yellow 1) EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.
What does CI 11680 (Pigment Yellow 1) do in cosmetics?
CI 11680 (Pigment Yellow 1) functions as: Colorant. It is classified as a cosmetic ingredient in our database. CAS number: 2512-29-0.
Is CI 11680 (Pigment Yellow 1) used outside cosmetics?
CI 11680 (Pigment Yellow 1) 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 11680 (Pigment Yellow 1) 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
CI 11710
Moderate
Chemical family
Colorant (yellow); azo pigment
CI 10006
Moderate
Browse nearby
Colorant (green)
CI 10020
Moderate
Browse nearby
Colorant (green)
Is CI 11680 (Pigment Yellow 1) 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 11680 (Pigment Yellow 1) in your formulation.