Nomen: Etelcalcetide CAS No. : 1262780-97-1 Sequentia: N-acetyl-D-cysteinyl-D-alanyl-D-arginyl-D-arginyl-D-arginyl-D-alanyl-D-argininamide disulfide with L-cysteine hydrochloride Molecular formula: C38H74ClN21O10S2 Molecular weight : 1084.71 Puritas: >98.0% Source: synthetica