189021-46-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 189021-46-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,9,0,2 and 1 respectively; the second part has 2 digits, 4 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 189021-46:
(8*1)+(7*8)+(6*9)+(5*0)+(4*2)+(3*1)+(2*4)+(1*6)=143
143 % 10 = 3
So 189021-46-3 is a valid CAS Registry Number.