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85598-65-8

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85598-65-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 85598-65-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,5,5,9 and 8 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 85598-65:
(7*8)+(6*5)+(5*5)+(4*9)+(3*8)+(2*6)+(1*5)=188
188 % 10 = 8
So 85598-65-8 is a valid CAS Registry Number.

85598-65-8Relevant articles and documents

Stereocontrolled synthesis of quinine and quinidine

Igarashi, Junji,Katsukawa, Masahiro,Wang, Yong-Gang,Acharya, Hukum P.,Kobayashi, Yuichi

, p. 3783 - 3786 (2007/10/03)

Disubstituted cyclopentene was prepared from cyclopentene monoacetate and transferred into disubstituted piperidine via oxidative cleavage of the olefin moiety followed by piperidine ring formation. The piperidine was then condensed at the side chain with a quinoline part to afford the olefin precursor of quinine. Finally, the olefin was converted into quinine through the corresponding epoxide. Quinidine was synthesized in a similar way.

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