77447-92-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 77447-92-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,4,4 and 7 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 77447-92:
(7*7)+(6*7)+(5*4)+(4*4)+(3*7)+(2*9)+(1*2)=168
168 % 10 = 8
So 77447-92-8 is a valid CAS Registry Number.