Substance Information

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REACH Registration data can be found in the new ECHA CHEM database. The old ‘Registered substance factsheets’ will be available on this web site during the transition period but have not been updated since 19 May 2023. More


Substance Infocard


Wurtzite, copper indium yellow

EC / List no.: 271-900-0

CAS no.: 68611-66-5

Mol. Formula:

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Key datasets


Regulatory context

Here you can find all of the regulations and regulatory lists in which this substance appears, according to the data available to ECHA. This substance has been found in the following regulatory activities (directly, or inheriting the regulatory context of a parent substance):

REACH - Registration, Evaluation, Authorisation and Restriction of Chemicals Regulation
  • Substances indicated, in 2009, as being intended to be registered by at least one company in the EEA.
Previous Legislations
  • Substances listed in the EINECS, ELINCS, or NLP inventories.
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Substance names and other identifiers

Regulatory process names
Wurtzite, copper indium yellow
EC Inventory, Other
Wurtzite, copper indium yellow
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.
Pre-Registration process, Other
Other identifiers
EC Inventory, Pre-Registration process, Other
CAS number