22010-91-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 22010-91-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,2,0,1 and 0 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 22010-91:
(7*2)+(6*2)+(5*0)+(4*1)+(3*0)+(2*9)+(1*1)=49
49 % 10 = 9
So 22010-91-9 is a valid CAS Registry Number.