1520-32-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1520-32-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,5,2 and 0 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1520-32:
(6*1)+(5*5)+(4*2)+(3*0)+(2*3)+(1*2)=47
47 % 10 = 7
So 1520-32-7 is a valid CAS Registry Number.