452309-21-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 452309-21-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,5,2,3,0 and 9 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 452309-21:
(8*4)+(7*5)+(6*2)+(5*3)+(4*0)+(3*9)+(2*2)+(1*1)=126
126 % 10 = 6
So 452309-21-6 is a valid CAS Registry Number.