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134426-58-7

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134426-58-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 134426-58-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,4,4,2 and 6 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 134426-58:
(8*1)+(7*3)+(6*4)+(5*4)+(4*2)+(3*6)+(2*5)+(1*8)=117
117 % 10 = 7
So 134426-58-7 is a valid CAS Registry Number.

134426-58-7Relevant articles and documents

Synthesis and biological activity of C-3' ortho dihydroxyphthalimido cephalosporins

Baudart,Hennequin

, p. 1458 - 1470 (2007/10/02)

A series of C-3' ortho dihydroxyphthalimido cephalosporins 3~7 has been prepared by reaction of C-3' aminomethyl cephalosporin 411) with the corresponding N carboethoxyphthalimides 23 ~ 25, 37, 38. These new caphalosporins exhibit excellent in vitro Gram-negative activities, including Pseudomonas aeruginosa, excellent β-lactamases stability and pharmacokinetics equivalent or better than ceftriaxone.

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