65993-16-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 65993-16-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,5,9,9 and 3 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 65993-16:
(7*6)+(6*5)+(5*9)+(4*9)+(3*3)+(2*1)+(1*6)=170
170 % 10 = 0
So 65993-16-0 is a valid CAS Registry Number.