INVESTIGATIONS WITH FLUORESCENCE-LABELED ANTIBODIES. IV. LABELING OF ANTIBODIES WITH SULFOCHLORIDES OF FLUORESCENT DYES

The demand for a prepared or readily produced fluorescent dye which is adequately stable in its reactive form, attaches itself securely to proteins and does not decolorize under UV illumination is met among sulfo dyes with tolerable satisfaction only by 1-dimethyl-naphtalene-5-sulfonic acid and sulforhodamine B.