20989-60-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 20989-60-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,9,8 and 9 respectively; the second part has 2 digits, 6 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 20989-60:
(7*2)+(6*0)+(5*9)+(4*8)+(3*9)+(2*6)+(1*0)=130
130 % 10 = 0
So 20989-60-0 is a valid CAS Registry Number.