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en:tryptophan [2013/06/09 10:10] (current)
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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-Tryptophan(((2S)-2-amino-3-(1H-indol-3-yl)-propanoic acid)) |
 +^MeSH| [[MeSH>​68014364]] |
 +^CAS No.|73-22-3|
 +^Molecular Weight| ​ 204.22518 g/mol  |
 +^Molecular Formula| <​chem>​C11H12N2O2</​chem>​ |
 +^XLogP| -1.3 |
 +^m.p.|280-285℃|
 +^pK<​sub>​1</​sub>​(25℃)|2.43|
 +^pK<​sub>​2</​sub>​(25℃)|9.44|
 +|{{pubchem>​large:​6305}}||
 +
 +
 +<jmol trp.pdb.gz 250 250></​jmol>​
 +
 +
 +======Links======
 +
 +  *[[Amino acid]]
 +  *Aromatic amino acid
 +    *[[Phenylalanine]]
 +    *[[Tyrosine]]
 +  *[[:​トリプトファン]]
 +  *[[:​ko:​트립토판=]]
 +
 +
 +{{tag>​Amino_acid Chemical_structure Jmol}}