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4β-acetoxy-3β-p-tolylsulphonyloxyandrost-5-en-17-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

21358-91-8

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21358-91-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 21358-91-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,3,5 and 8 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 21358-91:
(7*2)+(6*1)+(5*3)+(4*5)+(3*8)+(2*9)+(1*1)=98
98 % 10 = 8
So 21358-91-8 is a valid CAS Registry Number.

21358-91-8Relevant academic research and scientific papers

The Solvolysis of 4β-Hydroxy-3β-p-tolylsulphonyloxyandrost-5-enes

Hanson, James R.,Wadsworth, Harry J.

, p. 933 - 937 (2007/10/02)

The solvolysis of 3β-p-tolylsulphonyloxyandrost-5-enes in acetic acid containing sodium acetate, is retarded by the presence of a 4β-acetoxy- or hydroxy-group.The products of solvolysis include the A-nor-3-formyl-steroids except in the presence of a 7-ketone.

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