120189-57-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 120189-57-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,0,1,8 and 9 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 120189-57:
(8*1)+(7*2)+(6*0)+(5*1)+(4*8)+(3*9)+(2*5)+(1*7)=103
103 % 10 = 3
So 120189-57-3 is a valid CAS Registry Number.