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5α-Pregn-16-en-20-one, also known as 5α-pregnane-16-en-20-one, is a steroidal compound derived from the pregnane family. It is characterized by a 16-ene double bond and a 20-one ketone functional group, with the 5α configuration indicating the presence of a hydroxyl group at the 5th carbon in an axial position. 5α-Pregn-16-en-20-one is a key intermediate in the synthesis of various steroidal drugs and hormones, such as corticosteroids and anabolic steroids, due to its structural similarity to natural steroids. It plays a significant role in the pharmaceutical industry for the development of medications targeting inflammation, immune response, and muscle growth.

3752-04-3

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3752-04-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 3752-04-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,7,5 and 2 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 3752-04:
(6*3)+(5*7)+(4*5)+(3*2)+(2*0)+(1*4)=83
83 % 10 = 3
So 3752-04-3 is a valid CAS Registry Number.

3752-04-3Relevant academic research and scientific papers

Radical deoxygenation of hydroxyl groups via phosphites

Zhang, Liming,Koreeda, Masato

, p. 13190 - 13191 (2007/10/03)

A highly efficient, two-step sequence method for the deoxygenation of hydroxyl groups has been developed. The method involves the preparation of the 2-(2-iodophenyl)ethyl methyl phosphite derivative of an alcohol using methyl dichlorophosphite and 2-(2-iodophenyl)ethanol. Treatment of the phosphite intermediate with (n-Bu)3SnH/AIBN in refluxing benzene cleanly produces the deoxygenation product of the original alcohol. Copyright

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