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4-Methyloestra-1,3,5(10)-trien-17-one is a synthetic steroid hormone with the molecular formula C19H24O2. It is a derivative of estrone, a naturally occurring estrogen hormone, and is characterized by the presence of a methyl group at the 4th carbon position. This chemical is used in pharmaceuticals, primarily as an intermediate in the synthesis of various estrogenic compounds. It plays a role in the development of medications targeting hormone-related conditions and has applications in the treatment of menopausal symptoms, osteoporosis, and certain gynecological disorders. Due to its hormonal activity, it is important to handle this chemical with care and to be aware of its potential side effects and interactions when used in medical treatments.

792-05-2

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792-05-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 792-05-2 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 7,9 and 2 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 792-05:
(5*7)+(4*9)+(3*2)+(2*0)+(1*5)=82
82 % 10 = 2
So 792-05-2 is a valid CAS Registry Number.

792-05-2Relevant academic research and scientific papers

The Westphalen rearrangement of 5α, 6α-epoxy-3β- methanesulfonyloxyandrostan-17-one

Knights, Steve G.,Hanson, James R.

, p. 830 - 831 (2007/10/03)

5α,6α-Epoxy-3β-methanesulfonyloxyandrostan-17-one undergoes a Westphalen backbone rearrangement rather than an aromatisation in acetic acid: acetic anhydride containing sulfuric acid catalyst, suggesting that under these conditions the formation of a 5α-sulfate from the epoxide and its ionisation takes precedence over the elimination of the 3β-methanesulfonate.

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