16684-39-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 16684-39-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,6,6,8 and 4 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 16684-39:
(7*1)+(6*6)+(5*6)+(4*8)+(3*4)+(2*3)+(1*9)=132
132 % 10 = 2
So 16684-39-2 is a valid CAS Registry Number.