Related Experiment Video
Updated: May 29, 2026

Color Spot Test As a Presumptive Tool for the Rapid Detection of Synthetic Cathinones
Published on: February 5, 2018
Benzoyltropeine, an unusual substance in street heroin samples
Abstract:
Benzoyltropeine, an isomer of tropacocaine, was found in samples of heroin seized in Florence in 1981. Since there were no analytical data on benzoyltropeine, it was difficult to differentiate this substance from tropacocaine. In an effort to make the differentiation easier, the authors tried out various techniques and found thin-layer chromatography and high-resolution gas chromatography to be the most suitable for this purpose. A specific identification of isomers of these substances was obtained by using nuclear magnetic resonance and gas chromatography/mass spectrometry techniques.
Related Concept Videos
Carboxylic Acids to Methylesters: Alkylation using Diazomethane
Aromatic Compounds: Overview
In 1825, Faraday isolated benzene...
Nomenclature of Aromatic Compounds with a Single Substituent
Electrophilic Aromatic Substitution: Nitration of Benzene
Nucleophilic Aromatic Substitution: Elimination–Addition
NMR Spectroscopy of Benzene Derivatives

