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17,20,20,21-Bismethylenedioxy-11β-hydroxy-5α-pregnan-3-one is a complex steroidal compound characterized by the presence of two methylene groups (-CH2-) bridging the 17th and 20th carbon atoms, as well as the 20th and 21st carbon atoms. This molecule features a hydroxyl group (-OH) at the 11β position and a 5α-configuration, indicating the orientation of the hydroxyl group at the 5th carbon. The pregnane core structure is a type of steroid with a specific arrangement of carbon atoms, and the 3-ketone functional group indicates the presence of a carbonyl group at the 3rd carbon. 17,20,20,21-bismethylenedioxy-11β-hydroxy-5α-pregnan-3-one is of interest in the field of chemistry and biochemistry, particularly in the study of steroidal hormones and their derivatives, due to its unique structure and potential biological activities.

1056-08-2

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1056-08-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1056-08-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,0,5 and 6 respectively; the second part has 2 digits, 0 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1056-08:
(6*1)+(5*0)+(4*5)+(3*6)+(2*0)+(1*8)=52
52 % 10 = 2
So 1056-08-2 is a valid CAS Registry Number.

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