powder or crystals

Empirical Formula (Hill Notation):
CAS Number:
Molecular Weight:
Beilstein/REAXYS Number:
EC Number:
MDL number:
PubChem Substance ID:
Pricing and availability is not currently available.

Quality Level


≥95% (HPLC)


powder or crystals


detection: suitable
peptide synthesis: suitable


slightly off-white to brown


265 °C (dec.) (lit.)

storage temp.


SMILES string




InChI key


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1 g in glass bottle

Biochem/physiol Actions

5-Fluoro-DL-tryptophan (5-F-TRP), a fluorine-containing analogue of tryptophan, may be incorporated into proteins such as cyclic AMP receptor protein (CRP) from Escherichia coli to study changes in ligand binding. 5-F-TRP may be used as an internal reference for chromatographic analysis of tryptophan and its derivatives found in whole blood.

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves


NONH for all modes of transport

WGK Germany


Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

F Sixl et al.
The Biochemical journal, 266(2), 545-552 (1990-03-01)
Two fluorine-containing analogues of the cyclic AMP receptor protein (CRP) from Escherichia coli were prepared by biosynthetic incorporation of 5-fluorotryptophan (5-F-Trp) and 3-fluorotyrosine (3-F-Tyr). The 19F-n.m.r. spectrum of the [5-F-Trp]CRP showed two signals corresponding to the two tryptophan residues, and...
N Aymard et al.
Progress in neuro-psychopharmacology & biological psychiatry, 18(1), 77-86 (1994-01-01)
1. 5-Hydroxytryptamine (5-HT) is a well known neurotransmitter implicated in mental disorders, tryptophan (Trp) as amino acid precursor may be interesting. 2. A rapid and simple reversed-phase (mu Bondapac C18 as stationary phase) liquid chromatographic method with fluorimetric detection (excitation:...
H Kinoshita et al.
Journal of bioscience and bioengineering, 92(6), 556-559 (2005-10-20)
In our study on nutritional requirement for the hyphal growth of Schizophyllum commune, we found that a Trp- mutant could not grow in the L-Trp-supplied medium in the presence of L-Ser. Further growth studies showed that not only L-Ser but...
Saswata Sankar Sarkar et al.
The journal of physical chemistry. B, 115(22), 7479-7486 (2011-05-18)
Tryptophan (Trp), an intrinsically fluorescent residue of proteins, has been used widely as an energy donor in fluorescence resonance energy transfer (FRET) experiments aimed at measuring intramolecular distances and distance distributions in protein folding-unfolding reactions. However, the high level of...
N V Visser et al.
FEBS letters, 583(17), 2785-2788 (2009-07-22)
The apoflavodoxin protein from Azotobacter vinelandii harboring three tryptophan (Trp) residues, was biosynthetically labeled with 5-fluorotryptophan (5-FTrp). 5-FTrp has the advantage that chemical differences in its microenvironment can be sensitively visualized via (19)F NMR. Moreover, it shows simpler fluorescence decay...

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