2290-01-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 2290-01-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,2,9 and 0 respectively; the second part has 2 digits, 0 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 2290-01:
(6*2)+(5*2)+(4*9)+(3*0)+(2*0)+(1*1)=59
59 % 10 = 9
So 2290-01-9 is a valid CAS Registry Number.