196521-82-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 196521-82-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,6,5,2 and 1 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 196521-82:
(8*1)+(7*9)+(6*6)+(5*5)+(4*2)+(3*1)+(2*8)+(1*2)=161
161 % 10 = 1
So 196521-82-1 is a valid CAS Registry Number.