1773-28-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1773-28-0 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,7,7 and 3 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1773-28:
(6*1)+(5*7)+(4*7)+(3*3)+(2*2)+(1*8)=90
90 % 10 = 0
So 1773-28-0 is a valid CAS Registry Number.