CAS Registry Number

CAS 135-20-6 — Cupferron

Cupferron is a chelating agent used in analytical chemistry for the selective precipitation and separation of metal ions, particularly iron and copper. It is also employed in the purification of rare earth elements. Available in powder form with a molecular weight of 155.15 g/mol, its chemical formula is C6H5N(NO)ONH4 and CAS number 135-20-6. Store at 2 to 8 °C. Hazardous: signal word Danger. Molekula supplies Cupferron from research to bulk quantities with full documentation and ISO 9001:2015 traceability.