Cas 1201658-99-2,C28H35ClO4

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Check Digit Verification of cas no

The CAS Registry Mumber 1201658-99-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,0,1,6,5 and 8 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1201658-99:
(9*1)+(8*2)+(7*0)+(6*1)+(5*6)+(4*5)+(3*8)+(2*9)+(1*9)=132
132 % 10 = 2
So 1201658-99-2 is a valid CAS Registry Number.

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1201658-99-2Relevant academic research and scientific papers

Synthesis of 3β, 7α, 11α-trihydroxy-pregn-21-benzylidene-5-en-20-one derivatives and their cytotoxic activities

Shan, Li-Hong,Liu, Hong-Min,Huang, Ke-Xue,Dai, Gui-Fu,Cao, Chen,Dong, Rui-Jing

scheme or table, p. 6637 - 6639 (2010/06/12)

A series of novel 3β, 7α, 11α-trihydroxy-pregn-21-benzylidene-5-en-20-one derivatives were synthesized and characterized by NMR, HRMS. The pregnenolone (1) was first biotransformed by Mucor circinelloides var lusitanicus to 3β, 7α, 11α-trihydroxy-pregn-5-

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