5628-49-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 5628-49-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,6,2 and 8 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 5628-49:
(6*5)+(5*6)+(4*2)+(3*8)+(2*4)+(1*9)=109
109 % 10 = 9
So 5628-49-9 is a valid CAS Registry Number.