20244-39-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 20244-39-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,2,4 and 4 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 20244-39:
(7*2)+(6*0)+(5*2)+(4*4)+(3*4)+(2*3)+(1*9)=67
67 % 10 = 7
So 20244-39-7 is a valid CAS Registry Number.