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287489-08-1

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287489-08-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 287489-08-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,8,7,4,8 and 9 respectively; the second part has 2 digits, 0 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 287489-08:
(8*2)+(7*8)+(6*7)+(5*4)+(4*8)+(3*9)+(2*0)+(1*8)=201
201 % 10 = 1
So 287489-08-1 is a valid CAS Registry Number.

287489-08-1Relevant articles and documents

The synthesis and evaluation of 3-substituted-7-(alkylidene)cephalosporin sulfones as β-lactamase inhibitors

Buynak, John D.,Doppalapudi, Venkata Ramana,Adam, Greg

, p. 853 - 857 (2007/10/03)

A series of 3-substituted-7-(alkylidene)cephaloporin sulfones were prepared and evaluated as inhibitors of representative class A and class C serine β-lactamase. Appropriate substituents resulted in a 1000-fold improvement in the inhibition of the class A enzymes and a simultaneous 20-fold improvement in the inhibition of class C. These new compounds have achieved the goal of creating broad scale inhibitors in the cephalosporin series. (C) 2000 Elsevier Science Ltd. All rights reserved.

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