55578-31-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 55578-31-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,5,5,7 and 8 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 55578-31:
(7*5)+(6*5)+(5*5)+(4*7)+(3*8)+(2*3)+(1*1)=149
149 % 10 = 9
So 55578-31-9 is a valid CAS Registry Number.