189146-15-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 189146-15-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,9,1,4 and 6 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 189146-15:
(8*1)+(7*8)+(6*9)+(5*1)+(4*4)+(3*6)+(2*1)+(1*5)=164
164 % 10 = 4
So 189146-15-4 is a valid CAS Registry Number.