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651293-91-3

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651293-91-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 651293-91-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,5,1,2,9 and 3 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 651293-91:
(8*6)+(7*5)+(6*1)+(5*2)+(4*9)+(3*3)+(2*9)+(1*1)=163
163 % 10 = 3
So 651293-91-3 is a valid CAS Registry Number.

651293-91-3Downstream Products

651293-91-3Relevant articles and documents

The Reductive Fragmentation of 7-Hydroxy-9,10-dioxotaxoids

Appendino, Giovanni,Noncovich, Alain,Bettoni, Piergiorgio,Dambruoso, Paolo,Sterner, Olov,Fontana, Gabriele,Bombardelli, Ezio

, p. 4422 - 4431 (2007/10/03)

The retro-aldol reductive fragmentation of different structural types of 7-hydroxy-9,10-dioxotaxoids was investigated, showing that the reaction is typical of taxanes and requires cerium(III) promotion with NaBH4 in protic medium and alkylboron (aluminium) hydrides in aprotic solvents. The resulting 7,8-seco-taxanes are key intermediates for the synthesis of a novel class of anticancer taxanes endowed with a unique pattern of in vivo biological activity. Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003.

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