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Chorionic gonadotrophin;Human chorionic gonadotropin;Chorionic gonadotropic hormone
HCG CAS 9002-61-3 is a hormone produced by cells that are surrounding a growing embryo (syncitiotrophoblast initially) , which eventually forms the placenta after implantation. The presence of hCG is detected in some pregnancy tests (HCG pregnancy strip tests).
HCG CAS 9002-61-3 is often called the pregnancy hormone because it is made by cells formed in the placenta, which nourishes the egg after it has been fertilized and becomes attached to the uterine wall. Levels can first be detected by a blood test about 11 days after conception and about 12-14 days after conception by a urine test.