861531-72-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 861531-72-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,6,1,5,3 and 1 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 861531-72:
(8*8)+(7*6)+(6*1)+(5*5)+(4*3)+(3*1)+(2*7)+(1*2)=168
168 % 10 = 8
So 861531-72-8 is a valid CAS Registry Number.