Cosmetic roles
Dyes hairHAIR DYEING
More data — names, identifiers, properties, test records, literature
Official labels & definitions
JCIA labelling name 塩基性黄４０: 本品は、次の化学式で表される頭髪用染料である。
Source: JCIA labelling names (Japan)
Names & identifiers
BASIC YELLOW 40INCI1H-Benzimidazolium, 2-[7-(diethylamino)-2-oxo-2H-1-benzopyran-3-yl]-1,3-dimethyl-, chlorideSynonym塩基性黄４０Japanese labelling name
- CAS No.chemical registry number
- 29556-33-0
- EC No.EU chemical inventory number
- 249-694-9
- DTXSIDUS EPA chemical ID
- DTXSID90904366
- DTXCIDUS EPA compound ID
- DTXCID601333523
- IUPAC
- 2-[7-(Diethylamino)-2-oxo-2H-1-benzopyran-3-yl]-1,3-dimethyl-1H-1,3-benzimidazol-3-ium chloride
- Molecular formula
- C22H24ClN3O2
- Molecular weight
- 397.9 g/mol
Irritation and sensitisation studies
4 skin studies and 2 eye studies are on record.
Classed as low4
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 6 studies
- Studies Indicate No Significant Irritation
skin irritation: in vivo · Screening · other guideline: OECD 402 according to - Studies Indicate No Significant Irritation
skin irritation: in vivo · Screening · other guideline: As mentioned below according to - Not likely to be sensitizing
skin sensitisation: in vivo (LLNA) · Screening · according to OECD Guideline 429 (Skin Sensitisation: Local Lymph Node Assay) 2010 according to EU Method B.42 (Skin Sensitisation: Local Lymph Node Assay) 2008 according to EPA OPPTS 870.2600 (Skin Sensitisation) 2003 - Not likely to be sensitizing
skin sensitisation · Screening · according to other guideline: As given below - Studies Indicate No Significant Irritation
eye irritation: in vitro / ex vivo · Screening · other guideline: OECD Guideline 437 (Bovine Corneal Opacity and Permeability Test Method for Identifying i) Chemicals Inducing Serious Eye Damage and ii) Chemicals Not Requiring Classification for Eye Irritation or Serious Eye Damage) 2013 according to - Studies Indicate No Significant Irritation
eye irritation: in vivo · Screening · other guideline: as mentioned below according to
Source: US EPA CompTox dashboard