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200568-20-3

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200568-20-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 200568-20-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,0,5,6 and 8 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 200568-20:
(8*2)+(7*0)+(6*0)+(5*5)+(4*6)+(3*8)+(2*2)+(1*0)=93
93 % 10 = 3
So 200568-20-3 is a valid CAS Registry Number.

200568-20-3Relevant articles and documents

Stereospecific synthesis of the major human metabolite of paclitaxel

Wittman, Mark D.,Kadow, John F.,Vyas, Dolatrai M.

, p. 4729 - 4731 (2000)

The stereospecific synthesis of 6-α-hydroxy paclitaxel 10, the major human metabolite of paclitaxel, is described. The 6,7-α-diol 4, obtained from paclitaxel, is converted to the 6,7-β-cyclic sulfate followed by nitrate addition and reduction to afford the title compound. (C) 2000 Elsevier Science Ltd.

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