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Ingredients

Ingredient Dictionary

PIGMENT YELLOW 73

Molecular structure

Definition

US FDA substance register · UNII BXL1J43EKI · registered name PIGMENT YELLOW 73 · single chemical substance

Source: US FDA Unique Ingredient Identifier (UNII)

Cosmetic roles

Dyes hairHAIR DYEING

Safety & regulatory references

Banned
Argentina · ASEAN · Brazil · China · European Union · South Korea · Taiwan · United Kingdom

Source: ASEAN Cosmetic Directive · EU Cosmetics Regulation · MFDS (Korea) cosmetic regulatory information · Taiwan FDA cosmetic ingredients · UK cosmetics regulations (OPSS)

Not classified under Korea’s toxic-substance GHS list · existing chemical substance

Source: Korea toxic substances GHS register (NIER)

EU Cosmetics Regulation, Annex II (prohibited substances), entry 1262

Source: EU prohibited substances (Annex II)

Restriction II/1262 · Other restriction: ban substances that deplete the ozone layer

Source: EU CosIng ingredient list

More data — names, identifiers, properties, test records, literature

Names & identifiers

PIGMENT YELLOW 73INCI피그먼트황색73호Korean label name (MFDS standard)Butanamide, 2-[(4-chloro-2-nitrophenyl)azo]-N-(2-methoxyphenyl)-3-oxo-Synonym
CAS No.chemical registry number
13515-40-7
EC No.EU chemical inventory number
236-852-7
DTXSIDUS EPA chemical ID
DTXSID6051691
DTXCIDUS EPA compound ID
DTXCID5030246
IUPAC
2-[(4-Chloro-2-nitrophenyl)diazenyl]-N-(2-methoxyphenyl)-3-oxobutanamide
Molecular formula
C17H15ClN4O5
Molecular weight
390.78 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.

  • Pigment3
  • Dye1

Source: US EPA CompTox dashboard

Irritation and sensitisation studies

2 skin studies and 1 eye studies are on record.

Classed as low2

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
  • 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

Source: US EPA CompTox dashboard

Linked databases 15