CI 11920 is classed chemically as a monoazo colour.
Definition
US FDA substance register · UNII JR7B69ZW9B · registered name SOLVENT ORANGE 1 · single chemical substance
CI 11920 is classed chemically as a monoazo colour. It conforms to the formula:
Cosmetic roles
Safety & regulatory references
- Banned
- Argentina · ASEAN · Brazil · European Union · United Kingdom
- Restricted or banned
- Argentina · ASEAN · Brazil · China · European Union · Taiwan
- Allowed colourant
- ASEAN · Taiwan
Source: ASEAN Cosmetic Directive · EU Cosmetics Regulation · MFDS (Korea) cosmetic regulatory information · UK cosmetics regulations (OPSS) · Taiwan FDA cosmetic ingredients
EU Cosmetics Regulation, Annex IV (allowed colourants), entry 7
Source: EU allowed colourants (Annex IV)
EU Cosmetics Regulation, Annex II (prohibited substances), entry 1343
Restriction II/1343 (Solvent Orange 1; CI 11920: and its salts when used as a substance in hair dye products)
Source: EU CosIng ingredient list
Restriction IV/7 (CI 11920) II/1343 (Solvent Orange 1; CI 11920: and its salts when used as a substance in hair dye products)
Source: EU CosIng ingredient list
More data — names, identifiers, properties, test records, literature
Names & identifiers
- CAS No.chemical registry number
- 2051-85-6
- EC No.EU chemical inventory number
- 218-131-9
- DTXSIDUS EPA chemical ID
- DTXSID9062146
- DTXCIDUS EPA compound ID
- DTXCID2036326
- IUPAC
- 4-(Phenyldiazenyl)benzene-1,3-diol
- Molecular formula
- C12H10N2O2
- Molecular weight
- 214.224 g/mol
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.
- Dye3
- Fragrance1
Source: US EPA CompTox dashboard
Irritation and sensitisation studies
2 skin studies and 0 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 2 studies
- SkinIrr2
Skin Irritation · QSAR Predicted - SkinSens1
Skin Sensitization · QSAR Predicted
Source: US EPA CompTox dashboard
Related literature
Linked databases 18
- 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
- EU Cosmetics Regulation
- EU prohibited substances (Annex II)
- MFDS (Korea) cosmetic regulatory information 2 3 4
- NIST Chemistry WebBook
- Taiwan FDA cosmetic ingredients
- Tlooto literature search
- UK cosmetics regulations (OPSS)
- UniChem cross-reference IDs
- US EPA CompTox dashboard 2
- US EPA DSSTox chemical database
- US FDA substance registration (GSRS)
- US FDA Unique Ingredient Identifier (UNII)
- Wikidata