16983-64-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 16983-64-5 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 4 respectively.
Calculate Digit Verification of CAS Registry Number 16983-64:
(7*1)+(6*6)+(5*9)+(4*8)+(3*3)+(2*6)+(1*4)=145
145 % 10 = 5
So 16983-64-5 is a valid CAS Registry Number.