20065-98-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 20065-98-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,0,6 and 5 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 20065-98:
(7*2)+(6*0)+(5*0)+(4*6)+(3*5)+(2*9)+(1*8)=79
79 % 10 = 9
So 20065-98-9 is a valid CAS Registry Number.