815601-25-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 815601-25-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,1,5,6,0 and 1 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 815601-25:
(8*8)+(7*1)+(6*5)+(5*6)+(4*0)+(3*1)+(2*2)+(1*5)=143
143 % 10 = 3
So 815601-25-3 is a valid CAS Registry Number.