55693-04-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 55693-04-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,5,6,9 and 3 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 55693-04:
(7*5)+(6*5)+(5*6)+(4*9)+(3*3)+(2*0)+(1*4)=144
144 % 10 = 4
So 55693-04-4 is a valid CAS Registry Number.