449778-55-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 449778-55-6 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, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 449778-55:
(8*4)+(7*4)+(6*9)+(5*7)+(4*7)+(3*8)+(2*5)+(1*5)=216
216 % 10 = 6
So 449778-55-6 is a valid CAS Registry Number.