1620289-11-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1620289-11-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,2,0,2,8 and 9 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1620289-11:
(9*1)+(8*6)+(7*2)+(6*0)+(5*2)+(4*8)+(3*9)+(2*1)+(1*1)=143
143 % 10 = 3
So 1620289-11-3 is a valid CAS Registry Number.