449778-76-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 449778-76-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,4,9,7,7 and 8 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 449778-76:
(8*4)+(7*4)+(6*9)+(5*7)+(4*7)+(3*8)+(2*7)+(1*6)=221
221 % 10 = 1
So 449778-76-1 is a valid CAS Registry Number.