651728-59-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 651728-59-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,5,1,7,2 and 8 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 651728-59:
(8*6)+(7*5)+(6*1)+(5*7)+(4*2)+(3*8)+(2*5)+(1*9)=175
175 % 10 = 5
So 651728-59-5 is a valid CAS Registry Number.
651728-59-5Relevant articles and documents
PRODRUGS OF PROTON PUMP INHIBITORS
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Page 92-93, (2010/02/06)
Prodrugs of proton pump inhibitors of Formulas 1 through 4, (I-IV), where the symbols are as defined in the specification, and the R group includes at least one acidic group or its pharmaceutically acceptable salt, have improved aqueous solubility and bioavailability.