55549-68-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 55549-68-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,5,5,4 and 9 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 55549-68:
(7*5)+(6*5)+(5*5)+(4*4)+(3*9)+(2*6)+(1*8)=153
153 % 10 = 3
So 55549-68-3 is a valid CAS Registry Number.