91948-71-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 91948-71-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,9,4 and 8 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 91948-71:
(7*9)+(6*1)+(5*9)+(4*4)+(3*8)+(2*7)+(1*1)=169
169 % 10 = 9
So 91948-71-9 is a valid CAS Registry Number.