55673-57-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 55673-57-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,5,6,7 and 3 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 55673-57:
(7*5)+(6*5)+(5*6)+(4*7)+(3*3)+(2*5)+(1*7)=149
149 % 10 = 9
So 55673-57-9 is a valid CAS Registry Number.