16983-62-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 16983-62-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,6,9,8 and 3 respectively; the second part has 2 digits, 6 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 16983-62:
(7*1)+(6*6)+(5*9)+(4*8)+(3*3)+(2*6)+(1*2)=143
143 % 10 = 3
So 16983-62-3 is a valid CAS Registry Number.