The Chemical Forms in which Procaine Amide Ethobromide is Secreted into Rat Bile

Abstract
1. Procaine amide ethobromide (PAEB) is actively secreted into rat bile unchanged and also in a conjugated form. 2. The conjugate was shown to be identical with synthetic N-acetyl procaine amide ethobromide (APAEB) by thin-layer chromatography, Sephadex gel filtration, and comparisons of hydrolysis rates. 3. It is suggested that APAEB would be a useful model compound for studying the hepatic transport of organic cations.

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