780003-28-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 780003-28-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,8,0,0,0 and 3 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 780003-28:
(8*7)+(7*8)+(6*0)+(5*0)+(4*0)+(3*3)+(2*2)+(1*8)=133
133 % 10 = 3
So 780003-28-3 is a valid CAS Registry Number.