HCG

HCG (Human Chorionic Gonadotropin) is a naturally occurring glycoprotein hormone produced by the placenta, recognised for its regulatory role in the hypothalamic–pituitary–gonadal (HPG) axis. Purity Base supplies HCG as a lyophilized powder, verified at ≥99% purity by HPLC, and manufactured under stringent laboratory conditions to deliver the consistency and reliability that biochemical and endocrinological research demands.

Research Background

HCG has been extensively studied in the context of endocrine signalling and hormone–receptor interaction. In in-vitro research settings, it has been investigated as a tool for exploring HPG axis regulation, receptor-mediated signalling pathways, and the broader mechanisms of reproductive endocrinology. The literature references its use in biochemical models examining how glycoprotein hormones initiate and modulate downstream hormonal cascades. Its well-characterised binding affinity for the LH/CG receptor makes it a frequently applied reference compound in signal transduction studies.

Reconstitution & Handling

The lyophilized powder should be reconstituted with an appropriate volume of bacteriostatic water (BAC water). Add the BAC water slowly to the vial and gently swirl — do not shake — until the powder is fully dissolved. Avoid vigorous agitation, which may compromise the integrity of this glycoprotein. Handle reconstituted solution with care and keep it cold at all times. Use sterile technique throughout preparation.

Storage & Stability

• Store the lyophilized product refrigerated, protected from light and moisture.
• For extended storage, the lyophilized powder may be kept frozen.
• Once reconstituted, store the solution refrigerated and use within a short period to preserve activity and sterility.
• Avoid repeated freeze–thaw cycles after reconstitution.

A batch-specific Certificate of Analysis (CoA) accompanies every order, confirming purity and quality against defined specifications.