20469-56-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 20469-56-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,4,6 and 9 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 20469-56:
(7*2)+(6*0)+(5*4)+(4*6)+(3*9)+(2*5)+(1*6)=101
101 % 10 = 1
So 20469-56-1 is a valid CAS Registry Number.