861523-34-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 861523-34-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,6,1,5,2 and 3 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 861523-34:
(8*8)+(7*6)+(6*1)+(5*5)+(4*2)+(3*3)+(2*3)+(1*4)=164
164 % 10 = 4
So 861523-34-4 is a valid CAS Registry Number.