71028-92-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 71028-92-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,0,2 and 8 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 71028-92:
(7*7)+(6*1)+(5*0)+(4*2)+(3*8)+(2*9)+(1*2)=107
107 % 10 = 7
So 71028-92-7 is a valid CAS Registry Number.