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Tryptophan

Tryptophan, Trp, W

An essential amino acid that is necessary for normal growth in infants and for NITROGEN balance in adults. It is a precursor of INDOLE ALKALOIDS in plants. It is a precursor of SEROTONIN (hence its use as an antidepressant and sleep aid). It can be a precursor to NIACIN, albeit inefficiently, in mammals.

Name L-Tryptophan1)
MeSH 68014364
CAS No.73-22-3
Molecular Weight 204.22518 g/mol
Molecular Formula C11H12N2O2
XLogP -1.3
m.p.280-285℃
pK1(25℃)2.43
pK2(25℃)9.44
PubChem image 6305

<jmol trp.pdb.gz 250 250></jmol>

Links

1) (2S)-2-amino-3-(1H-indol-3-yl)-propanoic acid