5663-99-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 5663-99-0 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,6,6 and 3 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 5663-99:
(6*5)+(5*6)+(4*6)+(3*3)+(2*9)+(1*9)=120
120 % 10 = 0
So 5663-99-0 is a valid CAS Registry Number.