161838-62-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 161838-62-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,1,8,3 and 8 respectively; the second part has 2 digits, 6 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 161838-62:
(8*1)+(7*6)+(6*1)+(5*8)+(4*3)+(3*8)+(2*6)+(1*2)=146
146 % 10 = 6
So 161838-62-6 is a valid CAS Registry Number.