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Other Classes -> Organophosphates, Other

Organophosphate

Organophosphate diesters (OPDE)

Liquid

Colorless clear liquid; [MSDSonline]

Solid

This chemical does not meet GHS hazard criteria for 44% (37 of 84) of reports.

Warning

H315 (56%): Causes skin irritation [Warning Skin corrosion/irritation]

P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)

Aggregated GHS information provided per 84 reports by companies from 6 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Hazard Traits - Developmental Toxicity; Neurotoxicity

Phosphoric acid, diethyl ester is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Phosphoric acid, diethyl ester are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)

S-Ethylisothiouronium diethylphosphate is a specific inhibitor of inducible NO synthase on hepatic NO production level. S-Ethylisothiouronium diethylphosphate affects systemic hemodynamic indices in the following way: the peripheral vascular resistance increases, the stroke volume and central blood volume increase, and the work of the left ventricle improves. (Wikipedia)

Diethyl phosphorothioate is a known human metabolite of Diazoxon, Chlorpyrifos-oxon, and Chlorpyrifos.

Metabolism of organophosphates occurs principally by oxidation, by hydrolysis via esterases and by reaction with glutathione. Demethylation and glucuronidation may also occur. Oxidation of organophosphorus pesticides may result in moderately toxic products. In general, phosphorothioates are not directly toxic but require oxidative metabolism to the proximal toxin. The glutathione transferase reactions produce products that are, in most cases, of low toxicity. Paraoxonase (PON1) is a key enzyme in the metabolism of organophosphates. PON1 can inactivate some organophosphates through hydrolysis. PON1 hydrolyzes the active metabolites in several organophosphates insecticides as well as, nerve agents such as soman, sarin, and VX. The presence of PON1 polymorphisms causes there to be different enzyme levels and catalytic efficiency of this esterase, which in turn suggests that different individuals may be more susceptible to the toxic effect of organophosphate exposure.

Paint and Coating Manufacturing

Phosphoric acid, diethyl ester: ACTIVE