91497-83-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 91497-83-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,4,9 and 7 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 91497-83:
(7*9)+(6*1)+(5*4)+(4*9)+(3*7)+(2*8)+(1*3)=165
165 % 10 = 5
So 91497-83-5 is a valid CAS Registry Number.