815654-84-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 815654-84-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,1,5,6,5 and 4 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 815654-84:
(8*8)+(7*1)+(6*5)+(5*6)+(4*5)+(3*4)+(2*8)+(1*4)=183
183 % 10 = 3
So 815654-84-3 is a valid CAS Registry Number.