Distribution and fate of diethyl malonate and diisopropyl fluorophosphate on pig skin in vitro

Chellquist, EM; Reifenrath, WG

HERO ID

4923746

Reference Type

Journal Article

Year

1988

Language

English

PMID

3236227

HERO ID 4923746
In Press No
Year 1988
Title Distribution and fate of diethyl malonate and diisopropyl fluorophosphate on pig skin in vitro
Authors Chellquist, EM; Reifenrath, WG
Journal Journal of Pharmaceutical Sciences
Volume 77
Issue 10
Page Numbers 850-854
Abstract The in vitro distribution and fate of [14C]diethyl malonate and [14C]diisopropyl fluorophosphate were evaluated on normal and heat-treated pig skin. The extent of hydrolysis from the skin surface, skin, and receptor fluid was determined. A significant skin-mediated hydrolysis (15-35% of applied dose) was observed for diethyl malonate in normal skin, but not in heat-treated skin. These results indicated that a heat labile process (e.g., enzymatic hydrolysis) was in part responsible for the degradation of diethyl malonate after topical application to normal skin. Heat treatment tripled the skin penetration of diisopropyl fluorophosphate and reduced the amount of recovered hydrolysis product, diisopropyl phosphoric acid. Enzymatic and spontaneous hydrolysis, as well as impurity, accounted for the presence of degradation product.
Doi 10.1002/jps.2600771008
Pmid 3236227
Wosid WOS:A1988Q400800007
Is Certified Translation No
Dupe Override No
Is Public Yes
Language Text English