162189-65-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 162189-65-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,2,1,8 and 9 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 162189-65:
(8*1)+(7*6)+(6*2)+(5*1)+(4*8)+(3*9)+(2*6)+(1*5)=143
143 % 10 = 3
So 162189-65-3 is a valid CAS Registry Number.