CI 11680 is classed chemically as a monoazo colour.
How much products actually contain
No product states its amount yet.
Of the products containing it, 1 list it before the 1% line and 1 after it (usually 1% or less).
Products using this ingredient
2 of 2 confirmed · likeliest to carry enough first
Definition
US FDA substance register · UNII RMB4YA40UY · registered name PIGMENT YELLOW 1 · single chemical substance
CI 11680 is classed chemically as a monoazo colour. It conforms to the formula:
Cosmetic roles
Safety & regulatory references
- Restricted
- ASEAN · China · European Union · Japan · South Korea · Taiwan
- Allowed colourant
- ASEAN · Taiwan · United States
Source: MFDS (Korea) cosmetic regulatory information · ASEAN Cosmetic Directive · Taiwan FDA cosmetic ingredients · US FDA prohibited and restricted ingredients
Argentina · Brazil
- Field of application and/or use : Dye Substances allowed exclusively in products that do not have contact with mucosa in regular and predictable use conditions.
Source: MFDS (Korea) cosmetic regulatory information
Not classified under Korea’s toxic-substance GHS list · existing chemical substance
EU Cosmetics Regulation, Annex IV (allowed colourants), entry 4 · maximum concentration Not to be used in products applied on mucous membranes
Source: EU allowed colourants (Annex IV)
Restriction IV/4 · Other restriction: ban substances that deplete the ozone layer
Source: EU CosIng ingredient list
More data — names, identifiers, properties, test records, literature
Official labels & definitions
JCIA labelling name 黄４０１: 本品は、昭和41年厚生省令第30号に示される黄色401号である。
Source: JCIA labelling names (Japan)
Names & identifiers
- CAS No.chemical registry number
- 2512-29-0
- EC No.EU chemical inventory number
- 219-730-8
- DTXSIDUS EPA chemical ID
- DTXSID4041735
- DTXCIDUS EPA compound ID
- DTXCID00809838
- IUPAC
- 2-[(4-Methyl-2-nitrophenyl)diazenyl]-3-oxo-N-phenylbutanamide
- Molecular formula
- C17H16N4O4
- Molecular weight
- 340.339 g/mol
Measured properties
- Appearance
- Liquid, Other Solid, CBI, Dry Powder · Yellow odorless powder, [MSDSonline]
- Melting/freezing point
- 257 ℃
- Flammability (solid, gas)
- not flammable
- Vapour pressure
- &, lt, 0 ㎩ (25℃)
- Water solubility
- 13 ug/L (22℃, pH: 5.8~6)
- Vapour density
- 1.385 g/㎤
- n-Octanol/water partition coefficient (Kow)
- 1146 (Pow, 22.5℃)
- Auto-ignition temperature
- 250 ℃
- Decomposition temperature
- 261 ℃
Values measured on the substance itself. The KOSHA data are a reference for writing and reviewing safety data sheets, not a specification for a commercial raw material.
Source: PubChem · KOSHA safety data sheets (Korea)
What products actually use it for
What the 16 products reported to the US EPA with this ingredient use it for. Products outside cosmetics are included, so the top few rows are its main uses.
- Dye8
- Pigment8
Source: US EPA CompTox dashboard
Irritation and sensitisation studies
2 skin studies and 1 eye studies are on record.
The study conclusions largely agree (100%). These tests are on the raw material itself; irritation at the amount in a finished product is a different question.
See all 3 studies
- Studies Indicate No Significant Irritation
skin irritation: in vivo · Screening · OECD Guideline 404 (Acute Dermal Irritation / Corrosion) according to EU Method B.4 (Acute Toxicity: Dermal Irritation / Corrosion) according to - Not likely to be sensitizing
skin sensitisation: in vivo (LLNA) · Screening · according to OECD Guideline 429 (Skin Sensitisation: Local Lymph Node Assay) - Studies Indicate No Significant Irritation
eye irritation: in vivo · Screening · OECD Guideline 405 (Acute Eye Irritation / Corrosion) according to EU Method B.5 (Acute Toxicity: Eye Irritation / Corrosion) according to
Source: US EPA CompTox dashboard
Linked databases 20
- ASEAN Cosmetic Directive
- Australian Industrial Chemicals Inventory (AICIS)
- China inventory of existing ingredients (IECIC)
- EU allowed colourants (Annex IV)
- EU CosIng ingredient list 2 3
- JCIA labelling names (Japan)
- Korea Cosmetic Association ingredient dictionary
- Korea toxic substances GHS register (NIER)
- KOSHA safety data sheets (Korea)
- MFDS (Korea) cosmetic ingredient register
- MFDS (Korea) cosmetic regulatory information 2 3 4
- PubChem
- Taiwan FDA cosmetic ingredients
- UniChem cross-reference IDs
- US EPA CompTox dashboard 2
- US EPA DSSTox chemical database
- US FDA prohibited and restricted ingredients
- US FDA substance registration (GSRS)
- US FDA Unique Ingredient Identifier (UNII)
- Wikidata