5200-15-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 5200-15-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,2,0 and 0 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 5200-15:
(6*5)+(5*2)+(4*0)+(3*0)+(2*1)+(1*5)=47
47 % 10 = 7
So 5200-15-7 is a valid CAS Registry Number.