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454693-98-2

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454693-98-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 454693-98-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,5,4,6,9 and 3 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 454693-98:
(8*4)+(7*5)+(6*4)+(5*6)+(4*9)+(3*3)+(2*9)+(1*8)=192
192 % 10 = 2
So 454693-98-2 is a valid CAS Registry Number.

454693-98-2Downstream Products

454693-98-2Relevant articles and documents

Design and synthesis of novel C2-symmetric chiral piperazines and an application to asymmetric acylation of σ-symmetric 1,2-diols

Nakamura, Daisuke,Kakiuchi, Kiyomi,Koga, Kenji,Shirai, Ryuichi

, p. 6139 - 6142 (2006)

(Chemical Equation Presented) A novel alicyclic chiral C 2-symmetric piperazine, (S,S)-7, is designed and synthesized from L-proline. Benzoylation of a series of cyclic and acyclic meso-1,2-diols with a catalytic amount of (S,S)-7 and CuCl2 provided optically active monobenzoates with high enantioselectivity.

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