130708-93-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 130708-93-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,0,7,0 and 8 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 130708-93:
(8*1)+(7*3)+(6*0)+(5*7)+(4*0)+(3*8)+(2*9)+(1*3)=109
109 % 10 = 9
So 130708-93-9 is a valid CAS Registry Number.
130708-93-9Relevant articles and documents
Cephalosporin compounds
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, (2008/06/13)
Cephalosporin compounds of the formula: wherein R1 is amino or protected amino; R2 is substituted or unsubstituted heterocyclic group having 1 - 3 hetero atoms selected from oxygen and sulphur; R3 is carboxyl or protected carboxyl; R4 is nucleo