6664-50-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 6664-50-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,6,6 and 4 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 6664-50:
(6*6)+(5*6)+(4*6)+(3*4)+(2*5)+(1*0)=112
112 % 10 = 2
So 6664-50-2 is a valid CAS Registry Number.