Dabcyl acid is the original dark fluorescence quencher.

26-Xylidine is an aniline derivative with the chemical formula (CH3)2C6H3NH2. It is an isomer of 24-xylidine and 34-xylidine. It is a colourless liquid although commercial samples can appear to be yellow or even red.

Melitidin was discovered in bergamot orange juice and exhibits statin-like properties,so the juice seems to have hypolipidemic activity.