181818-37-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 181818-37-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,1,8,1 and 8 respectively; the second part has 2 digits, 3 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 181818-37:
(8*1)+(7*8)+(6*1)+(5*8)+(4*1)+(3*8)+(2*3)+(1*7)=151
151 % 10 = 1
So 181818-37-1 is a valid CAS Registry Number.