78028-40-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 78028-40-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,0,2 and 8 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 78028-40:
(7*7)+(6*8)+(5*0)+(4*2)+(3*8)+(2*4)+(1*0)=137
137 % 10 = 7
So 78028-40-7 is a valid CAS Registry Number.