121258-13-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 121258-13-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,2,5 and 8 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 121258-13:
(8*1)+(7*2)+(6*1)+(5*2)+(4*5)+(3*8)+(2*1)+(1*3)=87
87 % 10 = 7
So 121258-13-7 is a valid CAS Registry Number.
121258-13-7Relevant articles and documents
Oxapenem-3-carboxylic acids
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, (2008/06/13)
Compounds of the structural formulae STR1 and their pharmaceutically acceptable salts, esters and amide derivatives, in which R1 and R2, independently of one another, denote hydrogen or pharmaceutically acceptable groups which have 1
