Dihydroisocodeine is an opioid derivative. Dihydroisocodeine is much less toxic for rabbits than codeine, and in these and other animals its convulsant action is less marked. The minimum analgesic dose for cats is considerably less than for codeine. In the 1930s it was clinically investigated for cough relief, where it has no demonstrable clinical superiority over standard codeine in the usual therapeutic dosage.

There is no information related to the biological and pharmacological application of estradiol 17-phosphate.

Tri-p-cresyl phosphate is a nonneurotoxic regioisomer of tri-o-cresyl phosphate and a congener of tri-p-ethylphenyl phosphate. Patch tests (triphenyl phosphate allergy) with analytical grade triphenyl phosphate, tri-m-cresyl phosphate, and tri-p-cresyl phosphate in the concentrations 5%, 0.5% and 0.05% pet. showed positive reactions to 0.05% triphenyl phosphate and 0.5% tri-m-cresyl phosphate, but no reaction to tri-p-cresyl phosphate.