Raw White Steroids Hormone Norethisterone Top Purity 99% Progestrone With Good Price

Hormone Progestrone Steroids Raw Powder Norethisterone

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Norethisterone
Synonyms: 17ALPHA-ETHYNYL-19-NORTESTOSTERONE; 19-NOR-4-ANDROSTEN-17-ALPHA-ETHYNYL-17-BETA-OL-3-ONE
CAS No. 68-22-4
Standard: BP, EP
Purity: 98%
Appearance: White powder
EINECS: 200-681-6
Molecular Formula C20H26O2
Molecular Weight 298.42
Package: According to clients' requirement
Usage: Progesteron. Norethindrone and acetate in combination with estrogen as contraceptive (oral). It is reasonably anticipated to be a human carcinogen

Product Description

Norethisterone (or norethindrone) (or 19-nor-17α-ethynyltestosterone) is a molecule used in some combined oral contraceptive pills, progestogen only pills and is also available as a stand-alone drug. It is a progestogen and can be used to treat premenstrual syndrome, painful periods, abnormal heavy bleeding, irregular periods, menopausal syndrome (in combination with oestrogen), or to postpone a period. It is also commonly used to help prevent uterine hemorrhage in complicated non-surgical or pre-surgical gynecologic cases. Norethindrone was the first orally highly active progestin to be synthesized. It was synthesized for the first time by chemists Luis Miramontes, Carl Djerassi, and George Rosenkranz at Syntex in Mexico City in 1951.[1] It was the progestin used in one of the first three oral contraceptives. Its related ester, norethisterone acetate, is used for the same indications.

Norethisterone should be used with caution in: patients who are obese or have a family member who has had a blood clot in their legs or lungs, fibroidsof the womb, raised blood pressure (hypertension), raised blood sugar(diabetes), depression, water retention, migraine, fitting (epilepsy), asthma, heart, liver or kidney problems, varicose veins, smoking, multiple sclerosis,muscle spasm (tetany), gallstones, problems with contact lenses,amenorrhoea (lack of menstrual periods), previous ectopic pregnancy (where the foetus develops outside the womb) and the immune condition systemiclupus erythematosus (also known as SLE).

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