1525-47-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1525-47-9 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 5 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1525-47:
(6*1)+(5*5)+(4*2)+(3*5)+(2*4)+(1*7)=69
69 % 10 = 9
So 1525-47-9 is a valid CAS Registry Number.