3549-22-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 3549-22-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,5,4 and 9 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 3549-22:
(6*3)+(5*5)+(4*4)+(3*9)+(2*2)+(1*2)=92
92 % 10 = 2
So 3549-22-2 is a valid CAS Registry Number.