181038-16-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 181038-16-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,1,0,3 and 8 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 181038-16:
(8*1)+(7*8)+(6*1)+(5*0)+(4*3)+(3*8)+(2*1)+(1*6)=114
114 % 10 = 4
So 181038-16-4 is a valid CAS Registry Number.