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DL-Tryptophan

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DL-Tryptophan Basic information

Product Name:
DL-Tryptophan
Synonyms:
  • (rs)-tryptophan
  • 2-Amino-3,3’-IndolylpropanoicAcid
  • DL-Trytophan
  • DL-Trytophane
  • DL-TRYPTOPHAN extrapure CHR
  • (±)-α-Amino-3-indolepropionic acid, (±)-2-Amino-3-(3-indolyl)propionic acid, DL-3β-Indolylalanine
  • α-amino-β-indolepropinic acid
  • DL-Tryptoplaan
CAS:
54-12-6
MF:
C11H12N2O2
MW:
204.23
EINECS:
200-194-9
Product Categories:
  • Amino Acids & Derivatives
  • Tryptophan [Trp, W]
  • alpha-Amino Acids
  • Amino Acids
  • Biochemistry
  • Indoles
  • Tryptophans
  • Amino Acids
  • Alphabetical Listings
  • Stable Isotopes
  • Amino Acids Derivatives
Mol File:
54-12-6.mol
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DL-Tryptophan Chemical Properties

Melting point:
289-290 °C (dec.)(lit.)
alpha 
[α]D20 -1~1°(c=1, dil. HCl)
Boiling point:
342.72°C (rough estimate)
Density 
1.1754 (rough estimate)
refractive index 
1.5200 (estimate)
storage temp. 
Store at RT.
solubility 
methanol: water (7:3): soluble
form 
Powder
pka
2.30±0.10(Predicted)
color 
White to light beige or light yellow
Odor
Odorless
Water Solubility 
10 g/L (20 ºC)
BRN 
86196
Stability:
Stable. Incompatible with strong oxidizing agents, strong acids.
InChIKey
QIVBCDIJIAJPQS-UHFFFAOYSA-N
CAS DataBase Reference
54-12-6(CAS DataBase Reference)
NIST Chemistry Reference
Tryptophane(54-12-6)
EPA Substance Registry System
Tryptophan (54-12-6)
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Safety Information

Hazard Codes 
Xi
Risk Statements 
22-36/37/38-37/38-41
Safety Statements 
24/25-36/37/39-36-26
WGK Germany 
1
RTECS 
YN6129200
8
TSCA 
Yes
HS Code 
29339990

MSDS

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DL-Tryptophan Usage And Synthesis

Chemical Properties

White crystals. Slightly soluble in water; stable in alkaline solution; decomposed by strong acids.

Uses

An amino acid precursor of serotonin and melatonin.

Definition

ChEBI: An alpha-amino acid that is alanine bearing an indol-3-yl substituent at position 3.

Safety Profile

Experimental reproductive effects. Questionable carcinogen with experimental carcinogenic data. When heated to decomposition it emits toxic fumes of NOx.

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