63103-55-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 63103-55-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,3,1,0 and 3 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 63103-55:
(7*6)+(6*3)+(5*1)+(4*0)+(3*3)+(2*5)+(1*5)=89
89 % 10 = 9
So 63103-55-9 is a valid CAS Registry Number.