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97004-08-5

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97004-08-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 97004-08-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,7,0,0 and 4 respectively; the second part has 2 digits, 0 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 97004-08:
(7*9)+(6*7)+(5*0)+(4*0)+(3*4)+(2*0)+(1*8)=125
125 % 10 = 5
So 97004-08-5 is a valid CAS Registry Number.

97004-08-5Relevant articles and documents

Synthesis of praziquantel via N-acyliminium ion cyclization of amtoo acetals through several synthetic routes

Kim, Joong Hyup,Lee, Yong Sup,Kim, Choong Sup

, p. 2279 - 2285 (2007/10/03)

Syntheses of praziquantel have been accomplished via an N-acyliminium ion by several routes including the tandem nucleophilic addition-cyclization sequence from amido acetal (8) or (10) and a stepwise cyclization of enamide (9) generated from the nucleophilic addition reaction of amido acetal (8) or (10).

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