491607-77-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 491607-77-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,9,1,6,0 and 7 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 491607-77:
(8*4)+(7*9)+(6*1)+(5*6)+(4*0)+(3*7)+(2*7)+(1*7)=173
173 % 10 = 3
So 491607-77-3 is a valid CAS Registry Number.