181869-04-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 181869-04-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,1,8,6 and 9 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 181869-04:
(8*1)+(7*8)+(6*1)+(5*8)+(4*6)+(3*9)+(2*0)+(1*4)=165
165 % 10 = 5
So 181869-04-5 is a valid CAS Registry Number.