83693-54-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 83693-54-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,6,9 and 3 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 83693-54:
(7*8)+(6*3)+(5*6)+(4*9)+(3*3)+(2*5)+(1*4)=163
163 % 10 = 3
So 83693-54-3 is a valid CAS Registry Number.