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DL-Tryptophan Structure

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.  Keep in dark place,Inert atmosphere,Room temperature
solubility  methanol: water (7:3): soluble
pka 2.30±0.10(Predicted)
form  Powder
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
LogP 1.040 (est)
CAS DataBase Reference 54-12-6(CAS DataBase Reference)
FDA UNII X9U7434L7A
NIST Chemistry Reference Tryptophane(54-12-6)
EPA Substance Registry System Tryptophan (54-12-6)

Safety

Symbol(GHS)
Signal wordWarning
Hazard statements H315-H319
Precautionary statements <ahref="/Hazard-Statements.pdf">P264-P280-P302+P352-P337+P313-P305+P351+P338-P362+P364-P332+P313
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
NFPA 704:
1
0 0

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DL-Tryptophan Chemical Properties,Usage,Production

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