Human Chorionic Gonadotropin (α-hCG), α Subunit

Product Name	alpha-Subunit Human Chorionic Gonadotropin
Source	Human Pregnancy Urine
Catalogue Number	325-12
Purity	> 95% (SDS-PAGE)
Form	Lyophilized
Protein	Reported in mg/vial (A₂₈₀, E^0.1%=0.43)
Formulation	Lyophilized from 50 mM ammonium bicarbonate.
Reconstitution	Reconstitute using neutral pH buffer of choice, avoiding extreme high and low pH.
Related Products	189-11 - hCG antigen from human urine 189-10 - Control grade hCG from human urine 325-11 - beta subunit hCG antigen from human urine
Storage	-20°C
Recertification	5 years
Infectious Disease Testing	Negative or non-reactive at the donor level for anti-HIV 1 and 2, anti-HCV and HBsAg by FDA approved methods.
Molecular Weight	14,900
Synonyms	a-hCG, alpha-hCG, Glycoprotein hormones alpha chain