As indicated in the following Biochemstry section, there are 4 types of chemically distinct<unk> s that are made serially from the 15-lipoxygenase metabolite of arachidonic acid viz., 15(S)-hydroperoxy-5Z,8Z,11Z,13E-eicosatetraenoic acid (i.e. 15(S)-HpETE): *<unk>  A4 *<unk>  C4 *<unk>  D4 *<unk>  E4
Eoxin
Toxin
Toxicophore
Chlorotoxin
Allergen
Aeroallergen
Agitoxin
Aflatoxin