492457-77-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 492457-77-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,9,2,4,5 and 7 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 492457-77:
(8*4)+(7*9)+(6*2)+(5*4)+(4*5)+(3*7)+(2*7)+(1*7)=189
189 % 10 = 9
So 492457-77-9 is a valid CAS Registry Number.