Prolume Purple or methoxy e-Coelenterazine (Me-O-e-CTZ) is a new synthetic analogue of e-Coelenterazine with an additional methoxy group quenching the emission maximum from 475 nm to 405 nm. Nanolight? Technologies developed Prolume Purple. (US Patent 2013/057660)nnProlume Purple exhibits an up to 13-fold higher luminescence than CTZ400a (“deep blue C”).