Norgestrel (Standard) is the standard substance of Norgestrel, and it is applicable for quantitative analysis, quality control, and related research in biochemical experiments. Norgestrel (WY-3707) is a synthetic progestin commonly used alone or in combination with an estrogen for contraception. Norgestrel suppresses the secretion of luteinizing and follicle-stimulating hormones (LH and FSH), thickens cervical mucus, and slows the transit of ova through the fallopian tubes.