Advertisement

Topics

Mass, NMR and IR spectroscopic characterization of pentedrone and pentylone and identification of their isocathinone by-products.

Summary of "Mass, NMR and IR spectroscopic characterization of pentedrone and pentylone and identification of their isocathinone by-products."

This study presents and discusses the mass spectrometric, nuclear magnetic resonance spectroscopic and infrared spectroscopic data of the designer drugs pentedrone (2-methylamino-1-phenylpentan-1-one) and its methylenedioxy analog pentylone (2-methylamino-1-(3,4-methylenedioxyphenyl)pentan-1-one). The structure elucidation of the aliphatic parts was carried out by product ion spectroscopy of the immonium ion with m/z=86 formed after electron ionization, and by one- and two-dimensional (1)H- and (13)C-NMR spectroscopy on the hydrochloride salts to verify the structure of the alkyl side chain and to determine the methylenedioxy position in the aromatic ring of pentylone. Furthermore, two typical cathinone synthesis by-products were detected besides the main compounds. Their mass spectra are discussed and for one of them (1-methylamino-1-phenylpentan-2-one (isopentedrone)) a NMR assignment was possible in the existing mixture.

Affiliation

State Bureau of Criminal Investigation Schleswig-Holstein, Section Narcotics/Toxicology, Mühlenweg 166, 24116 Kiel, Germany.

Journal Details

This article was published in the following journal.

Name: Forensic science international
ISSN: 1872-6283
Pages: 157-67

Links

DeepDyve research library

PubMed Articles [14545 Associated PubMed Articles listed on BioPortfolio]

Schedules of Controlled Substances: Placement of 10 Synthetic Cathinones Into Schedule I. Final rule.

With the issuance of this final rule, the Drug Enforcement Administration places 10 synthetic cathinones: 4-methyl-N-ethylcathinone (4-MEC); 4-methyl-alpha-pyrrolidinopropiophenone (4-MePPP); alpha-py...

Strategies for metabolite profiling based on liquid chromatography.

This paper aims at covering the principal strategies based on liquid chromatography (LC) for metabolite profiling in the field of drug discovery and development. The identification of metabolites gene...

Mass Spectrometry applied to the identification of M. tuberculosis and biomarkers discovery.

An adequate and effective tuberculosis diagnosis system has been identified by World Health Organization (WHO) as a priority in the fighting against this disease. Over the years, several methods have ...

Identification of a new tert-leucinate class synthetic cannabinoid in powder and "spice-like" herbal incenses: Methyl 2-1-(5-fluoropentyl)indole-3-carbonylamino-3,3-dimethyl-butanoate (5F-MDMB-PICA).

A brown powder and different product packages of "spice-like" herbal incenses were analyzed using a systematic identification approach based on liquid chromatography with diode array detector (HPLC-PD...

Characterization of crude oil asphaltenes by coupling size exclusion chromatography directly to an ultrahigh resolution mass spectrometer.

Fossil fuels are one of the most important energy resources until new sustainable materials will be available. To optimize the upgrading processes of these materials characterization of the remaining ...

Clinical Trials [2034 Associated Clinical Trials listed on BioPortfolio]

Non-Invasive Optical Spectroscopic Methods for Dehydration Identification in Marathon Trainees

Dehydration can result from exposure to harsh environments including hot and dry desert climates. Soldiers and non-military workers are frequently required to work in hot, dry conditions,...

Mass Balance Recovery, Metabolite Profile and Metabolite Identification of [14C]-BIA 9-1067

The purpose is to and to assess the mass balance recovery after a single oral dose of [14C]-BIA 9-1067 and to provide plasma, urine and faecal samples for metabolite profiling and structur...

Spectroscopic Evaluation of Cervical Neoplasia

The overall objective of this study is to evaluate whether fluorescence and reflectance spectroscopy can improve the ability to detect the presence of premalignant lesions on the cervix. ...

A Study to Assess the Mass Balance Recovery, Metabolite Profile and Metabolite Identification of [14C]-SK-1405

The primary objectives of the study are: - To assess the mass balance recovery after a single PO dose of [14C]-SK-1405 - To provide plasma, urine and faecal samples for metabolite ...

Optimization of Spectroscopic Imaging Parameters and Procedures for Prostate at 3 Tesla Using an External Probe

Magnetic resonance (MR) spectroscopic techniques are to be developed to obtain the best data possible at 3 Tesla (3T) for the prostate.

Medical and Biotech [MESH] Definitions

A mass spectrometry technique using two (MS/MS) or more mass analyzers. With two in tandem, the precursor ions are mass-selected by a first mass analyzer, and focused into a collision region where they are then fragmented into product ions which are then characterized by a second mass analyzer. A variety of techniques are used to separate the compounds, ionize them, and introduce them to the first mass analyzer. For example, for in GC-MS/MS, GAS CHROMATOGRAPHY-MASS SPECTROMETRY is involved in separating relatively small compounds by GAS CHROMATOGRAPHY prior to injecting them into an ionization chamber for the mass selection.

An analytical method used in determining the identity of a chemical based on its mass using mass analyzers/mass spectrometers.

The genetic constitution of the individual; the characterization of the genes.

A mass spectrometric technique that is used for the analysis of a wide range of biomolecules, such as glycoalkaloids, glycoproteins, polysaccharides, and peptides. Positive and negative fast atom bombardment spectra are recorded on a mass spectrometer fitted with an atom gun with xenon as the customary beam. The mass spectra obtained contain molecular weight recognition as well as sequence information.

Analysis of PEPTIDES that are generated from the digestion or fragmentation of a protein or mixture of PROTEINS, by ELECTROPHORESIS; CHROMATOGRAPHY; or MASS SPECTROMETRY. The resulting peptide fingerprints are analyzed for a variety of purposes including the identification of the proteins in a sample, GENETIC POLYMORPHISMS, patterns of gene expression, and patterns diagnostic for diseases.

Quick Search
Advertisement
 


DeepDyve research library

Searches Linking to this Article