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GC/MS Analysis of M-Hydroxybenzoylecgonine in Urine. Forensic Implication in Cocaine Use

GC/MS Analysis of M-Hydroxybenzoylecgonine in Urine. Forensic Implication in Cocaine Use

M A elSohly, W J Kopycki, S Feng, T P Murphy, B J Lukey

Clin Lab Med. 1998 Dec;18(4):699-704, ix.

PMID: 9891608

Abstract:

m-Hydroxybenzoylecgonine (m-OH-BE) and d3-m- hydroxybenzoylecgonine (d3-m-OH-BE) have been synthesized, and a GC/MS procedure with d3-m-OH-BE as internal standard has been developed. Among 24 human urine specimens that were positive for BE, all of them have shown detectable levels of m-OH-BE with 75% of the specimens exceeding the LoQ (5 ng/mL), compared with only 50% of the specimens containing detectable levels of EME. The presence of m-OH-BE in urine suggested that this metabolite may serve as a valuable marker of cocaine use in addition to BE and EME.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP129944996-B	m-Hydroxybenzoylecgonine		129944-99-6	Price

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