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Substance Name: Wurtzite, copper indium yellow
RN: 68611-66-5


  • TSCA Definition 2017: An inorganic pigment that is the reaction product of high temperature calcination in which copper (I) sulfide, indium (III) sulfide, and zinc sulfide in varying amounts are homogeneously and ionically interdiffused to form a crystalline matrix of wurtzite. Its composition may include any one or a combination of the modifiers barium sulfate or selenium.

Molecular Formula

  • Unspecified

Classification Code

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Names and Synonyms


  • EINECS 271-900-0
  • Zinc sulfide yellow wurtzite

Systematic Name

  • Wurtzite, copper indium yellow

Registry Numbers

CAS Registry Number

  • 68611-66-5

System Generated Number

  • 0068611665