Patent ID: 6166202
Filing Date: 2000-12-26
Classification: C07D,C09B,G01N

Abstract:
A benzophenoxazine compound having the formula ##STR7## where X is O or NH or N-alkyl or N-aryl or N-alkenyl,Y is --NR.sup.1 R.sup.2 or H,R.sup.1 and R.sup.2 are the same or different and each is C1-C12 aryl, alkenyl or alkyl or is -L-A,in at least one -L-A:L is a linker chain of 0-20 carbon atoms and which may contain one or more O or N or S atoms, andA may be amine or amide or --CN or alcohol or thiol or carboxyl or sulfonate or phosphate, or a reactive group by means of which the benzophenoxazine compound may be covalently linked to a biomolecule, or a group which enhances water solubility or provides electron donor or withdrawal properties to modify the spectral characteristics of the dye,with the proviso that when L is zero, then A is not H,and each other -L-A is H or C1-C20 alkyl.