B7-33 is a synthetic single-chain relaxin mimetic derived from the B-chain of relaxin, designed to selectively activate the RXFP1 receptor while reducing affinity for other relaxin receptors. It is supplied as a high-purity white lyophilized powder (>=99% HPLC) in sealed vials for laboratory use. B7-33 is investigated in research on fibrosis, tissue remodeling, and relaxin-receptor signaling, and is commonly applied in cell-culture and preclinical studies. The stable freeze-dried format supports easy reconstitution and reproducible dosing. Strict quality control ensures consistent purity and reliable experimental outcomes. Every batch undergoes strict quality control, and a Certificate of Analysis (COA) is available for specific batches upon request to support reproducible laboratory work. For storage, keep the unopened reagent sealed at 2-8 degree C and protected from light and moisture; for long-term storage, store at -20 degree C and avoid repeated freeze-thaw cycles. We support both small trial orders and large-volume bulk orders. OEM and private-label packaging services are available for research projects, and secure neutral packing is used for all shipments with worldwide delivery to the USA, Europe, Canada, Australia, the UK and many other regions. Please note that this product is intended for laboratory research use only and is not for human or veterinary application.