122689-80-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 122689-80-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,2,6,8 and 9 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 122689-80:
(8*1)+(7*2)+(6*2)+(5*6)+(4*8)+(3*9)+(2*8)+(1*0)=139
139 % 10 = 9
So 122689-80-9 is a valid CAS Registry Number.