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Estra-1,3,5(10)-trien-17-ol,3,4-dimethyl-, acetate, (17b)- (9CI) is a chemical compound with the molecular formula C22H32O2. It is a derivative of estradiol, a naturally occurring estrogen hormone, and is characterized by the presence of a 3,4-dimethyl group and an acetate group. Estra-1,3,5(10)-trien-17-ol,3,4-dimethyl-, acetate, (17b)- (9CI) is primarily used in pharmaceutical applications, particularly in the development of hormone replacement therapies and contraceptives. Its chemical structure allows it to interact with estrogen receptors in the body, modulating various physiological processes. The compound's specific stereochemistry, indicated by the (17b)- notation, is crucial for its biological activity and therapeutic effects.

4736-57-6

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4736-57-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 4736-57-6 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,7,3 and 6 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 4736-57:
(6*4)+(5*7)+(4*3)+(3*6)+(2*5)+(1*7)=106
106 % 10 = 6
So 4736-57-6 is a valid CAS Registry Number.

4736-57-6Downstream Products

4736-57-6Relevant academic research and scientific papers

Aromatization of 7β,17β-Diacetoxy-4-methyleneandrost-5-ene

Hanson, James R.,Truneh, Almaz

, p. 1461 - 1464 (2007/10/02)

Treatment of 7β,17β-diacetoxy-4-methyleneandrost-5-ene with hydrobromic acid in glacial acetic acid affords 17β-acetoxy-1,4-dimethyloestra-1,3,5(10)-triene rather than an anthrasteroid.The incorporation of deuterium from deuterium bromide and deuterioacetic acid on the C-4 methyl group is consistent with a methyl group migration from C-10 to C-1 during the rearrangement.A minor amount of 17β-acetoxy-3,4-dimethyloestra-1,3,5(10)-triene is also formed in the rearrangement.

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