5022-91-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 5022-91-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,0,2 and 2 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 5022-91:
(6*5)+(5*0)+(4*2)+(3*2)+(2*9)+(1*1)=63
63 % 10 = 3
So 5022-91-3 is a valid CAS Registry Number.