Estrogens and Progestogens

Estrogens and Progestogens

Estrogens and progestogens are key steroid hormone APIs essential for regulating reproductive physiology, menstrual cycles, fertility, and secondary sexual characteristics. Estrogen APIs support hormone replacement therapy, menopausal symptom management, and contraceptive formulations, while progestogens regulate ovulation, maintain pregnancy, and counterbalance estrogenic effects. These hormones act through nuclear receptors to modulate gene expression, tissue differentiation, and endocrine feedback loops. Pharmaceutical formulations include oral tablets, transdermal patches, injectables, vaginal preparations, and sustained-release systems. Their therapeutic applications extend to endometriosis, abnormal uterine bleeding, polycystic ovary syndrome, and oncology. Due to their wide clinical importance, estrogens and progestogens form a major foundation of reproductive and endocrine therapeutics.

16Alpha,17Alpha-Dimethylprogesterone CAS NO 19590-23-9

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CAS No.:19590-23-9

Grade:Pharmacy Grade

Content:99.90%

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Δ-5(10)-Norethindrone Acetate CAS NO 19637-28-6

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CAS No.:19637-28-6

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Content:99.90%

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Phenestrol CAS NO 19659-38-2

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CAS No.:19659-38-2

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Norethindrone Sulfate CAS NO 19778-24-6

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CAS No.:19778-24-6

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13-Ethyl-17-Hydroxy-18,19-Dinorpregn-5(10)-En-20-Yn-3-One CAS NO 19914-67-1

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CAS No.:19914-67-1

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Content:99.90%

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Dl-Estrone CAS NO 19973-76-3

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CAS No.:19973-76-3

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Ethinylestradiol CAS NO 100019-04-3

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CAS No.:100019-04-3

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Content:99.90%

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5(6)-Dehydro-4(5)-Dihydro D-(-)-Norgestrel CAS NO 100021-05-4

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CAS No.:100021-05-4

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