20886-97-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 20886-97-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,8,8 and 6 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 20886-97:
(7*2)+(6*0)+(5*8)+(4*8)+(3*6)+(2*9)+(1*7)=129
129 % 10 = 9
So 20886-97-9 is a valid CAS Registry Number.