L(-)-Tryptophan ≥99%, Powder

Supplier: MP BIOMEDICALS (FKA ICN BIOMED

Synonyms: L-α-Amino-3-indolepropionic acid(S)-2-Amino-3-(3-indolyl)propionic acidH-Trp-OHL-TryptophanTryptophan

0210315125 0210315191 0210315105
IC10315125EA 47.34 USD
IC10315125 IC10315105 IC10315191
L(-)-Tryptophan ≥99%, Powder
L(-)-Tryptophan

L-Tryptophan is an amino acid precursor of serotonin and melatonin.


Chloride ≤0.05%
sulphate ≤0.03%
Iron ≤0.003%


It is used as a precursor to niacin, indole alkaloids and serotonin. It acts as an important intrinsic fluorescent probe, which finds to estimate the nature of microenvironment of the tryptophan.


It is used as a precursor to niacin, indole alkaloids and serotonin. It acts as an important intrinsic fluorescent probe, which finds to estimate the nature of microenvironment of the tryptophan.


Soluble in 1N HCl (10 mg/mL - clear, colourless solution).

Formula: C₁₁H₁₂N₂O₂
MW: 204.23 g/mol
MDL Number: MFCD00064340
CAS Number: 73-22-3

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Specification Test Results

Synonyms L-2-amino-3-indolepropionic acid; Trp; W; (S)-2-Amino-3-(3-indolyl)propionic acid
Form White powder
Storage Store at Room temperature(15-30 °C).
Heavy Metals ≤0.0015%
Moisture Content ≤0.3%
Optical Rotation -30° ± 10° (c=1, water)
pH 5.5 - 7.0 (1% aq soln)
Residue on Ignition ≤0.1%

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