Molecular FormulaC13H16N2O2
Molecular Weight232.28
  • N,N-dimethyltryptophan
  • SCHEMBL3855614
  • Nalpha,Nalpha-Dimethyltryptophan


HPLC Separation of Biogenic Amines on Primesep 100 Column

April 30, 2020

Tryptophan is an essential amino acid used in the synthesis of proteins. Tryptamine is structurally similar to tryptophan. Serotonin is a neurotransmitter derived from tryptophan. Dimethyltryptamine and 5-MeO-DMT are psychedelic substances derived from tryptamine. All the compounds have similar structures and can present difficulties to separation in reverse-phase HPLC. They can be separated using the Primesep 100 mixed-mode column in gradient analysis with acetonitrile (ACN) and water mobile phase with ammonium formate (AmFm) buffer, making the method MS-compatible. The amines can also be UV detected at 280nm.


Column Primesep 100, 4.6×150 mm, 5 µm, 100A
Mobile Phase Gradient MeCN – 40-50%, 15 min
Buffer Gradient AmFm pH 3.0- 20-80 mM, 15 min
Flow Rate 1.0 ml/min
Detection UV 280 nm,  MS-compatible mobile phase



Class of Compounds
Drug, Hydrophilic, Supplements, Monoamine,  Neurotransmitter
Analyzing Compounds Serotonin, Tryptophan, N,N-dimethyltryptophan, N,N-Dimethyl-5-methoxytryptamine, Tryptamine, N,N-dimethyltryptamine


Application Column

Primesep 100

The Primesep family of mixed-mode columns offers a wide variety of stationary phases, boasting unprecedented selectivity in the separation of a broad array of chemical compounds across multiple applications. Corresponding Primesep guard columns, available with all stationary phases, do not require holders. SIELC provides a method development service available to all customers. Inquire about our specially-tailored custom LC-phases for specific separations.

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Application Analytes:
SIELC Technologies usually develops more than one method for each compound. Therefore, this particular method may not be the best available method from our portfolio for your specific application. Before you decide to implement this method in your research, please send us an email to research@sielc.com so we can ensure you get optimal results for your compound/s of interest.