82161-98-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 82161-98-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,2,1,6 and 1 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 82161-98:
(7*8)+(6*2)+(5*1)+(4*6)+(3*1)+(2*9)+(1*8)=126
126 % 10 = 6
So 82161-98-6 is a valid CAS Registry Number.