206989-22-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 206989-22-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,6,9,8 and 9 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 206989-22:
(8*2)+(7*0)+(6*6)+(5*9)+(4*8)+(3*9)+(2*2)+(1*2)=162
162 % 10 = 2
So 206989-22-2 is a valid CAS Registry Number.