50663-51-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 50663-51-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,0,6,6 and 3 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 50663-51:
(7*5)+(6*0)+(5*6)+(4*6)+(3*3)+(2*5)+(1*1)=109
109 % 10 = 9
So 50663-51-9 is a valid CAS Registry Number.