91647-73-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 91647-73-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,6,4 and 7 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 91647-73:
(7*9)+(6*1)+(5*6)+(4*4)+(3*7)+(2*7)+(1*3)=153
153 % 10 = 3
So 91647-73-3 is a valid CAS Registry Number.