PHYSOSTIGMINE SALICYLATE

Химические свойства

solid

Использование

Physostigmine salicylate (Eserine salicylate) is used as bulk pharmaceuticals (parasympathomimetic, cholinergic, ophthalmic, anti-Alzheimer). Product Data Sheet

Общее описание

The salicylate ofphysostigmine (eserine salicylate) may be prepared byneutralizing an ethereal solution of the alkaloid with anethereal solution of salicylic acid. Excess salicylic acid isremoved from the precipitated product by washing itwith ether. The salicylate is less deliquescent than thesulfate.
Physostigmine salicylate occurs as a white, shining,odorless crystal or white powder that is soluble in water(1:75), alcohol (1:16), or chloroform (1:6) but much lesssoluble in ether (1:250). On prolonged exposure to air andlight, the crystals turn red. The red may be removed bywashing the crystals with alcohol, although this causes lossof the compound as well. Aqueous solutions are neutral orslightly acidic and take on a red coloration after a period.The coloration may be taken as an index of the loss of activityof physostigmine solutions.

Профиль реактивности

Behaves as a weak acid in solution.

Угроза здоровью

PHYSOSTIGMINE SALICYLATE is similar to physostigmine. It is classified as super toxic. The probable oral lethal dose (humans) is less than 5 mg/kg or a taste for a 150 lb. person. It is a cholinesterase inhibitor.

Пожароопасность

When heated to decomposition, PHYSOSTIGMINE SALICYLATE emits toxic fumes of nitrogen oxides.

Профиль безопасности

Poison by ingestion, subcutaneous, intramuscular, intravenous, and intraperitoneal routes. Human systemic effects: arrhythmias, nausea or vomiting. Experimental reproductive effects. When heated to decomposition it emits toxic fumes of NOx See also PHYSOSTIGMINE.