60309-21-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 60309-21-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,0,3,0 and 9 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 60309-21:
(7*6)+(6*0)+(5*3)+(4*0)+(3*9)+(2*2)+(1*1)=89
89 % 10 = 9
So 60309-21-9 is a valid CAS Registry Number.