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200055-57-8

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200055-57-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 200055-57-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,0,0,5 and 5 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 200055-57:
(8*2)+(7*0)+(6*0)+(5*0)+(4*5)+(3*5)+(2*5)+(1*7)=68
68 % 10 = 8
So 200055-57-8 is a valid CAS Registry Number.

200055-57-8Relevant articles and documents

The development of strategies for construction of the aziridine core of the antitumor agents azinomycins A and B

Coleman, Robert S.,Carpenter, Andrew J.

, p. 16313 - 16326 (1997)

The synthesis of the C6-C13 aziridino[1,2a]pyrrolidine core substructure of the antitumor agents azinomycins A (1a) and B (1b) is described. Key synthetic steps included Wadsworth-Horner-Emmons olefination for formation of the C7-C8 double bond, an E-sele

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