189298-45-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 189298-45-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,9,2,9 and 8 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 189298-45:
(8*1)+(7*8)+(6*9)+(5*2)+(4*9)+(3*8)+(2*4)+(1*5)=201
201 % 10 = 1
So 189298-45-1 is a valid CAS Registry Number.