ChemicalBook > CAS DataBase List > DL-Tryptophan

DL-Tryptophan

Product Name
DL-Tryptophan
CAS No.
54-12-6
Chemical Name
DL-Tryptophan
Synonyms
DL-Trp-OH;ryptophan;DL-Trp;DL-Tryptphan;DL-Trytophan;DL-Tryptohan;DL-Trytophane;DL-Tryptophan;DL-Tryptoplaan;DL-Trypthophan
CBNumber
CB6107772
Molecular Formula
C11H12N2O2
Formula Weight
204.23
MOL File
54-12-6.mol
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DL-Tryptophan Property

Melting point:
289-290 °C (dec.)(lit.)
Boiling point:
342.72°C (rough estimate)
alpha 
[α]D20 -1～1°(c=1, dil. HCl)
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
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
LogP
1.040 (est)
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

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
F 
8
TSCA 
Yes
HS Code 
29339990
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

Precautionary statements

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P332+P313IF SKIN irritation occurs: Get medical advice/attention.

P337+P313IF eye irritation persists: Get medical advice/attention.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
162698
Product name
DL-Tryptophan
Purity
≥99% (HPLC)
Packaging
1.5g
Price
$153
Updated
2024/03/01
Sigma-Aldrich
Product number
162698
Product name
DL-Tryptophan
Purity
≥99% (HPLC)
Packaging
50g
Price
$162
Updated
2024/03/01
TCI Chemical
Product number
T0540
Product name
DL-Tryptophan
Purity
>99.0%(HPLC)(T)
Packaging
25g
Price
$43
Updated
2024/03/01
Alfa Aesar
Product number
L05936
Product name
DL-Tryptophan, 99%
Packaging
5g
Price
$28.2
Updated
2024/03/01
Alfa Aesar
Product number
L05936
Product name
DL-Tryptophan, 99%
Packaging
25g
Price
$64.5
Updated
2024/03/01
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DL-Tryptophan Chemical Properties,Usage,Production

Chemical Properties

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

Uses

DL-Tryptophan is an amino acid precursor of serotonin and melatonin. It is a dietary supplement for use as an antidepressant, anxiolytic, and sleep aid. DL-tryptophan also can be used as feed nutrition enhancer, antioxidants.

Definition

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

General Description

Tryptophan is the precursor for 5-hydroxy-tryptamin and an essential α-amino acid. DL-Tryptophan exists as a zwitterion during crystallization.

Biochem/physiol Actions

DL-Tryptophan binding to bovine serum albumin is employed for its affinity based chromatographic purification. Supplementation of tryptophan in diets of rat induce bladder tumor.

Safety Profile

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

DL-Tryptophan Preparation Products And Raw materials

Raw materials

L-Tyrosine 2-Acetamidoacrylic acid 2-Methylindole Acrolein 1-Cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid ethyl ester L-Phenylalanine N-[(tert-Butoxy)carbonyl]-D-tryptophan Acetic anhydride formaldehyde L-Tryptophan Sodium sulfate INDOPHENOL L-Alanine Pyruvic acid Water Sulfurous Acid Pyridoxal 5'-phosphate monohydrate Inosine Gramine DL-Serine AMINOMALONIC ACID Acetic acid Indole Starch Dimethylamine

Preparation Products

D-Tryptophan L-Tryptophan
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View Lastest Price from DL-Tryptophan manufacturers

Hebei Mojin Biotechnology Co., Ltd
Product
DL-Tryptophan 54-12-6
Price
US $0.00/KG
Min. Order
1KG
Purity
99.6%
Supply Ability
50000KG/month
Release date
2024-10-22
Shaanxi TNJONE Pharmaceutical Co., Ltd
Product
Dl-Tryptophan 54-12-6
Price
US $0.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
1000kg
Release date
2024-04-25
Qiuxian Baitai New Material Co., LTD
Product
dl-tryptophan 54-12-6
Price
US $80.00/KG
Min. Order
100KG
Purity
99%
Supply Ability
5ton/Month
Release date
2021-11-08

54-12-6, DL-TryptophanRelated Search:

Cyclamic acid 3-Indolepropionic acid Glycine ALTRENOGEST 3-Aminopyridine DL-Phenylalanine β-Alanine D(+)-Tryptophan Tris(hydroxymethyl)aminomethane Propionic acid Molasses 6-Aminocaproic acid DL-TYROSINE METHYL ESTER HCL DL-Tyrosine L-Tryptophan N-[(tert-Butoxy)carbonyl]-D-tryptophan AC-TRP-OET N-Acetyl-DL-tryptophan

  • (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
  • DL-Tryptphan
  • rac-(S*)-2-Amino-3-(1H-indole-3-yl)propanoic acid
  • DL-α-AMino-3-indolepropionic Acid
  • (+/-)-2-Amino-3-(3-indolyl)propionic Acid H-DL-Trp-OH
  • DL-Tryptophan Vetec(TM) reagent grade, 98%
  • DL-TRYPTOPHAN, >=99% (HPLC)
  • (R,S)-2-Amino-3-(3-indolyl)propanoic acid
  • DL-Trp-OH
  • DL-Tryptophan≥ 98% (Titration)
  • DL-Tryptophan,(±)-α-Amino-3-indolepropionic acid, (±)-2-Amino-3-(3-indolyl)propionic acid, DL-3β-Indolylalanine
  • Racemic Tryptophan
  • DL-TRYPTOPHAN-2-13C
  • (±)-α-Amino-3-indolepropionic acid
  • DL-3β-Indolylalanine
  • DL-Trypthophan
  • DL-TRYPTOPHAN CELL CULTURE TESTED
  • DL-TRYPTOPHAN, 99+%
  • DL -TRYPTOPHAN BIOTECH GRADE 99+%
  • Dl-TryptophanForBiochemistry
  • Dl-TryptophanForBicochemistry
  • Dl-TryptophanForBicochemistry-(+/-)-2-Amino-3-(3-Lindoly)PropionicAcid)
  • (n)-2-amino-3-(3-indolyl)propionic acid
  • DL-Tryptophan
  • DL-Tryptohan
  • DL-Trytophan (1.08375)
  • (R,S)-2-Amino-3-(1H-indol-3-yl)-propionic acid
  • (+/-)-2-Amino-3-(3-indolyl)propionic acid
  • DL-Trp
  • DL-Tryptophan &gt
  • Tryptophan, 99%, reagent grade
  • ryptophan
  • DL-Tryptophan USP/EP/BP
  • dextro,laevo-tryptophan
  • DL-Tryptophane, 99%+
  • DL-Tryptophan 54-12-6
  • N-Acetyltryptophan Impurity A
  • C17895000 Tryptophan
  • 54-12-6
  • 1954-12-06
  • 54-21-6
  • 13CC10H12N2O2
  • AMINE
  • Amino Acid Derivatives
  • Tryptophan
  • Specialty Synthesis
  • Peptide Synthesis
  • Amino Acids & Derivatives
  • Tryptophan [Trp, W]
  • alpha-Amino Acids
  • Amino Acids