91296-21-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 91296-21-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,2,9 and 6 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 91296-21:
(7*9)+(6*1)+(5*2)+(4*9)+(3*6)+(2*2)+(1*1)=138
138 % 10 = 8
So 91296-21-8 is a valid CAS Registry Number.
91296-21-8Relevant articles and documents
Cephem compounds
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, (2008/06/13)
Cephem compounds of the following formula are disclosed: STR1 wherein R1 is amino or protected amino group. R2 is H or an organic group, R3 is H or an organic group, R4 is H, lower alkyl, carboxy, protected carb