CAS Number	64-04-0
Molecular Formula	C8H11N
Molecular Weight	121.183
InChI Key	BHHGXPLMPWCGHP-UHFFFAOYSA-N
LogP	1.41
Synonyms	Phenethylamine 2-Phenylethan-1-amine Benzeneethanamine 64-04-0 Benzeneethanamine (2-Aminoethyl)benzene (β-Aminoethyl)benzene 1-Amino-2-phenylethane 2-Amino-1-phenylethane 2-Phenethylamine 2-Phenyl-1-ethylamine 2-Phenylethanamine 2-Phenylethaneamine 2-Phenylethylamine Ethanamine, 2-phenyl- ETHYLAMINE, 2-PHENYL- fenetilamina N-Phenethylamine NSC 10811 Phenethylamin β-Phenethylamine β-Phenylethylamine BRN 0507488 EINECS 200-574-4 FEMA No. 3220 PHENETHYLAMINE, BETA 1-Phenyl-2-aminoethane Phenylethylamine UNII-327C7L2BXQ (2-Aminoethyl)polystyrene 1-Phenethylamine 1-Phenyl-2-amino-athan 1-Phenyl-2-amino-athan (GERMAN) 1-Phenyl-2-amino-athan [German] 1-Phenyl-2-aminoethane 1tnj 1utm 1uto 2-Amino-fenylethan 2-Amino-fenylethan [Czech] 2-Fenylethylamin 2-Fenylethylamin [Czech] 2-Phenyl-Ethanamine 2-Phenylethanamine (ACD/Name 4.0) 2-Phenylethylamine (ACD/Name 4.0) 2-phenylethan-1-amine Benzeneethanamine hydrochloride Omega-phenylethylamine PEA Phenethylamine hydrochloride Polystyrene A-NH2 b-Aminoethylbenzene b-Phenethylamine b-Phenylaethylamin b-Phenylaethylamin (german) b-Phenylethylamine beta Phenethylamine beta-Phenylaethylamin beta-Phenylaethylamin (german) beta-Phenylaethylamin [german] beta-aminoethylbenzene beta-phenethylamine

Applications:

Uv-Vis Spectrum of Phenethylamine

February 25, 2026

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Access the UV-Vis Spectrum SIELC Library

If you are looking for optimized HPLC method to analyze Phenethylamine check our HPLC Applications library

For optimal results in HPLC analysis, it is recommended to measure absorbance at a wavelength that matches the absorption maximum of the compound(s) being analyzed. The UV spectrum shown can assist in selecting an appropriate wavelength for your analysis. Please note that certain mobile phases and buffers may block wavelengths below 230 nm, rendering absorbance measurement at these wavelengths ineffective. If detection below 230 nm is required, it is recommended to use acetonitrile and water as low UV-transparent mobile phases, with phosphoric acid and its salts, sulfuric acid, and TFA as buffers.
For some compounds, the UV-Vis Spectrum is affected by the pH of the mobile phase. The spectra presented here are measured with an acidic mobile phase that has a pH of 3 or lower.

Phenethylamine

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.

HPLC Separation of Histamine and Phenethylamine on Primesep C Column

August 7, 2010

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Histamine is a basic compound that acts like neurotransmitter. Phenethylamine is a natural amine alkaloid psychoactive compound with stimulant effects. It forms by enzymatic decarboxylation of phenylalanine, and also acts as neurotransmitter. Both compounds are separated in one HPLC run on Primesep C and Primesep 200 columns by reversed-phase cation-exchange mechanism. Primesep C provides shorter retention time and histamine and phenethylamine can be separated within 5 minutes. Primesep C and Primesep 200 columns do not require ion-pairing reagent as it is attached to the surface of Primesep silica gel. Method can be used for analysis of these two compounds in plasma, blood and urine with UV, ELSD, CAD or LC/MS detection.