Cetrorelix is a synthetic decapeptide GnRH antagonist that blocks GnRH receptors competitively, suppressing gonadotropin release without the initial flare seen with agonists, which makes it valuable in controlled ovarian-stimulation and receptor-antagonism research. Its defined antagonism supports dose-response and kinetics studies. This product is a white lyophilized powder at >=99% HPLC purity in a sealed vial. Batch certificates, trial quantities and bulk options are available. Samples for quality evaluation can be arranged for serious buyers, with sample cost credited against the first bulk order in most cases. Our pricing structure supports both small laboratory orders and large wholesale contracts, and payment options include major transfer and trade platforms.