Indigo dye is a member of hydroxyindoles.
How much products actually contain
No product states its amount yet.
Of the products containing it, 1 list it before the 1% line and 0 after it (usually 1% or less).
Products using this ingredient
1 of 1 confirmed · likeliest to carry enough first
Definition
Indigo dye is a member of hydroxyindoles.
Source: PubChem
US FDA substance register · UNII 1G5BK41P4F · registered name INDIGO · single chemical substance
CI 73000 is classed chemically as an indigoid 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 color additives · US FDA prohibited and restricted ingredients
Argentina · Brazil
- Field of application and/or use : Dye Substances allowed for all kinds of products.
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 98
Source: EU allowed colourants (Annex IV)
Restriction IV/98
Source: EU CosIng ingredient list
More data — names, identifiers, properties, test records, literature
Official labels & definitions
JCIA labelling name 青２０１: 本品は、昭和41年厚生省令第30号に示される青色201号である。
Source: JCIA labelling names (Japan)
Names & identifiers
- CAS No.chemical registry number
- 482-89-3
- EC No.EU chemical inventory number
- 207-586-9
- DTXSIDUS EPA chemical ID
- DTXSID3026279
- DTXCIDUS EPA compound ID
- DTXCID101022739
- IUPAC
- 2-(3-Oxo-1,3-dihydro-2H-indol-2-ylidene)-1,2-dihydro-3H-indol-3-one
- Molecular formula
- C16H10N2O2
- Molecular weight
- 262.268 g/mol
Measured properties
- Appearance
- solid
- Odour
- odourless
- pH
- 10
- Melting/freezing point
- 390 ℃
- Flash point
- 390 ℃
- Vapour pressure
- 0.0000000009 ㎜Hg
- Water solubility
- 13.4 ㎎/ℓ
- Relative density
- 1.35
- n-Octanol/water partition coefficient (Kow)
- 2.7
- Decomposition temperature
- 390 ℃
- Molecular weight
- 262.27
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: KOSHA safety data sheets (Korea)
What products actually use it for
What the 4 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.
- Dye2
- Surface modifier1
- Pigment1
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 · other guideline: FDA Federal Register 38, No 187 equivalent or similar to - SkinSens1
Skin Sensitization · QSAR Predicted - Studies Indicate No Significant Irritation
eye irritation: in vivo · Screening · other guideline: FDA Federal Register 38, No 187 according to
Source: US EPA CompTox dashboard
Linked databases 23
- ASEAN Cosmetic Directive
- Australian Industrial Chemicals Inventory (AICIS)
- ChEBI
- ChEMBL
- China inventory of existing ingredients (IECIC)
- EU allowed colourants (Annex IV)
- EU CosIng ingredient list 2
- 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
- NIST Chemistry WebBook
- PubChem
- Taiwan FDA cosmetic ingredients
- UniChem cross-reference IDs
- US EPA CompTox dashboard 2
- US EPA DSSTox chemical database
- US FDA color additives
- US FDA prohibited and restricted ingredients
- US FDA Unique Ingredient Identifier (UNII)
- Wikidata 2