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33465-39-3

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33465-39-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 33465-39-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,3,4,6 and 5 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 33465-39:
(7*3)+(6*3)+(5*4)+(4*6)+(3*5)+(2*3)+(1*9)=113
113 % 10 = 3
So 33465-39-3 is a valid CAS Registry Number.

33465-39-3Relevant articles and documents

SYNTHESIS AND 1,3-DIPOLAR CYCLOADDITIONS OF 2-METHYLENECEPHALOSPORINS

Jaszberenyi J. Csaba,Pitlik Janos,Kollar Katalin,Petrikovics Ilona,Erdoedi-Koever Katalin,Batta Gyula

, p. 81 - 98 (2007/10/02)

Cephalosporin R- and S-sulphoxides were prepared.The S-sulphoxides gave Mannich-reaction resulting in the formation of 2-methylenecephalosporins.These electrom-deficient dienes underwent 1,3-dipolar cycloadditions with diazoalkanes in a chemo- and regiosp

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