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Chorionic Gonadotropin

The placenta secretes chorionic gonadotropin beginning just after implantation. This glycoprotein consists of two chains. The α-chain is identical to the α-chains of three pituitary hormones - luteinizing hormone (LH), follicle stimulating hormone (FSH) and thyroid stimulating hormone (TSH). The β-chain is unique to gonadotropin. Signaling through its receptor, human chorionic gonadotropin (HCG) maintains the corpus luteum and causes it to secrete progesterone. Because HCG is usually secreted within seven days after conception, and because serum levels double every 2-3 days for the first two months of pregnancy, its presence in urine is the basis of home pregnancy tests. It is also used in fertility treatments. The β-chain is secreted by some tumors and its presence in urine can indicate testicular cancer. Most of our HCG products are purified from pregnancy urine, and are available in several formulations, including convenient vials of sterile filtered lyophilized powder standardized by HCG units. We also offer recombinant HCG, HCG purified from menopausal urine, and gonadotropin purified from pregnant mare′s serum. Gonadotropin from pregnant mare serum can be used to induce super-ovulation in mammals.

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C2047 Chorionic gonadotropin human suitable for radioiodination, RIA, lyophilized powder
C0434 Chorionic gonadotropin human from human pregnancy urine, lyophilized powder
C1063 Chorionic gonadotropin human lyophilized powder, vial of ~2,500 IU
CG5 Chorionic gonadotropin human lyophilized powder, vial of ~5,000 IU
CG10 Chorionic gonadotropin human lyophilized powder, vial of ~10,000 IU
C5297 Chorionic gonadotropin human lyophilized powder, potency: ≥5,000 I.U. per mg
C8554 Chorionic gonadotropin human lyophilized powder, mouse embryo tested
C6447 Chorionic gonadotropin α subunit human recombinant, expressed in mouse cell line, powder
G1299 Chorionic Gonadotropin β-subunit human recombinant, expressed in Pichia pastoris, lyophilized powder
C8534 Anti-Chorionic Gonadotropin (α+β subunits) (HCG) antibody produced in rabbit whole antiserum
G5270 Gonadotropin from human menopausal urine
G4877 Gonadotropin from pregnant mare serum ≥1,000 IU/mg
G4527 Gonadotropin from pregnant mare serum lyophilized powder, BioXtra, suitable for mouse embryo cell culture