72169-01-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 72169-01-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,2,1,6 and 9 respectively; the second part has 2 digits, 0 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 72169-01:
(7*7)+(6*2)+(5*1)+(4*6)+(3*9)+(2*0)+(1*1)=118
118 % 10 = 8
So 72169-01-8 is a valid CAS Registry Number.