20447-64-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 20447-64-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,4,4 and 7 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 20447-64:
(7*2)+(6*0)+(5*4)+(4*4)+(3*7)+(2*6)+(1*4)=87
87 % 10 = 7
So 20447-64-7 is a valid CAS Registry Number.