HCG 5000 IU for laboratory research

Buy HCG 5000 IU for laboratory research, supplied as lyophilized powder in one boxed 3 mL vial. HCG stands for human chorionic gonadotropin. The IU label describes biological activity; the 3 mL specification describes container capacity.

Understand the activity label

5000 IU is not a milligram amount. Converting activity to protein mass requires a preparation-specific activity value and its measurement basis. An IU-to-mass conversion taken from another supplier’s HCG may not apply to this material.

When comparing products, check the activity per vial, number of vials, material identity and supporting analytical record. Do not use the visible amount of dried powder to infer biological activity.

A two-subunit glycoprotein

HCG contains alpha and beta protein subunits with attached carbohydrate structures. In Lapthorn and colleagues’ crystallographic study, each subunit had a cystine-knot structure, and a segment of the beta subunit wrapped around the alpha subunit. This architecture helps distinguish intact HCG from isolated subunits or short synthetic peptides.

The structural study describes the researchers’ experimental material. Glycoform distribution, activity and formulation are separate specifications for individual preparations. If an experiment depends on intact hormone, a specific subunit or a defined glycosylation profile, the product specification must answer that question.

HMG 75 IU is a separate gonadotropin preparation. The similar names and use of IU do not make HCG and HMG interchangeable.

Product documents and handling

Open Documents for the available product files. Check how identity and activity are documented, and match any batch report to the supplied product and lot. A purity percentage alone does not confirm the labeled biological activity.

Use storage and handling instructions applicable to the supplied preparation. The boxed vial contains powder; its 3 mL capacity is not a liquid fill volume or a preparation instruction.