Blue+Number+1

Blue #1:Brilliant Blue FCF is described as the sodium salt. Blue one does not hold well in the body and therefore 90% is exerted through the feces... Uh, I think we all know what that means...

O9S3N2C37H34

Image url:http://upload.wikimedia.org/wikipedia/commons/a/a1/Brilliant_Blue_FCF.png Information url:http://chemistryandphysics.astate.edu/draganjac/BlueFC.html