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128109-26-2

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128109-26-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 128109-26-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,1,0 and 9 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 128109-26:
(8*1)+(7*2)+(6*8)+(5*1)+(4*0)+(3*9)+(2*2)+(1*6)=112
112 % 10 = 2
So 128109-26-2 is a valid CAS Registry Number.

128109-26-2Relevant articles and documents

Cephalosporin compounds and antibacterial agents

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, (2008/06/13)

Novel cephalosporin compounds represented by formula (I): STR1 wherein R1 represents a lower alkyl group which may optionally have a substituent; each of R2 and R3 independently represents a hydrogen atom or hydroxy group; and A represents a hydrogen atom or a residue of nucleophilic compound, and pharmacologically acceptable salts or esters thereof exhibit a potent antibacterial activity against gram positive and gram negative bacteria.

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