HCG — human chorionic gonadotropin — is a large protein rather than a defined small molecule. It is built from two subunits and heavily coated in sugars, and because that sugar coating varies from source to source, it does not have one tidy, fixed identity the way the small peptides in this catalog do.
Vestrand lists it for inquiry only, supplied as a single lot with documentation provided on request.
One trap is worth naming: a figure sometimes printed for HCG actually describes just one of its two subunits on its own, stripped of its sugars — not the whole, intact protein. It should not be used to stand in for this material. Because HCG cannot be added to a cart directly, availability is handled on request.
For laboratory research use only. Not for human or veterinary use.