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73-22-3

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73-22-3 Usage

General Description

L-Tryptophane is an essential amino acid that serves as a precursor for the synthesis of serotonin and melatonin, which play important roles in regulating mood and sleep. It is found in a variety of protein-rich foods such as turkey, chicken, fish, and dairy products, and is also available as a dietary supplement. L-Tryptophane has been studied for its potential therapeutic effects in treating depression, anxiety, and sleep disorders, and has also been investigated for its role in supporting immune function and promoting healthy digestion. However, it is important to note that excessive intake of L-Tryptophane can lead to adverse effects such as nausea, headaches, and dizziness, and should be used under the guidance of a healthcare professional.

Check Digit Verification of cas no

The CAS Registry Mumber 73-22-3 includes 5 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 2 digits, 7 and 3 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 73-22:
(4*7)+(3*3)+(2*2)+(1*2)=43
43 % 10 = 3
So 73-22-3 is a valid CAS Registry Number.
InChI:InChI=1/C11H12N2O2/c12-9(11(14)15)5-7-6-13-10-4-2-1-3-8(7)10/h1-4,6,9,13H,5,12H2,(H,14,15)/t9-/m0/s1

73-22-3 Well-known Company Product Price

  • Brand
  • (Code)Product description
  • CAS number
  • Packaging
  • Price
  • Detail
  • TCI America

  • (T0541)  L-Tryptophan  >98.5%(HPLC)(T)

  • 73-22-3

  • 25g

  • 236.00CNY

  • Detail
  • TCI America

  • (T0541)  L-Tryptophan  >98.5%(HPLC)(T)

  • 73-22-3

  • 100g

  • 650.00CNY

  • Detail
  • Alfa Aesar

  • (A10230)  L-Tryptophan, 99%   

  • 73-22-3

  • 25g

  • 220.0CNY

  • Detail
  • Alfa Aesar

  • (A10230)  L-Tryptophan, 99%   

  • 73-22-3

  • 100g

  • 629.0CNY

  • Detail
  • Alfa Aesar

  • (A10230)  L-Tryptophan, 99%   

  • 73-22-3

  • 500g

  • 2405.0CNY

  • Detail
  • Sigma-Aldrich

  • (PHR1176)  Tryptophan  pharmaceutical secondary standard; traceable to USP and PhEur

  • 73-22-3

  • PHR1176-1G

  • 732.19CNY

  • Detail
  • Sigma-Aldrich

  • (51145)  L-Tryptophan  certified reference material, TraceCERT®

  • 73-22-3

  • 51145-100MG

  • 1,117.35CNY

  • Detail
  • Sigma-Aldrich

  • (T2610000)  Tryptophan  European Pharmacopoeia (EP) Reference Standard

  • 73-22-3

  • T2610000

  • 1,880.19CNY

  • Detail
  • Sigma-Aldrich

  • (T0254)  L-Tryptophan  reagent grade, ≥98% (HPLC)

  • 73-22-3

  • T0254-1G

  • 166.14CNY

  • Detail
  • Sigma-Aldrich

  • (T0254)  L-Tryptophan  reagent grade, ≥98% (HPLC)

  • 73-22-3

  • T0254-5G

  • 242.19CNY

  • Detail
  • Sigma-Aldrich

  • (T0254)  L-Tryptophan  reagent grade, ≥98% (HPLC)

  • 73-22-3

  • T0254-25G

  • 396.63CNY

  • Detail
  • Sigma-Aldrich

  • (T0254)  L-Tryptophan  reagent grade, ≥98% (HPLC)

  • 73-22-3

  • T0254-100G

  • 1,207.44CNY

  • Detail

73-22-3SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 12, 2017

Revision Date: Aug 12, 2017

1.Identification

1.1 GHS Product identifier

Product name L-tryptophan

1.2 Other means of identification

Product number -
Other names L-Tryptophan

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:73-22-3 SDS

73-22-3Relevant articles and documents

Recreating the natural evolutionary trend in key microdomains provides an effective strategy for engineering of a thermomicrobial N-demethylase

Gu, Zhenghua,Guo, Zitao,Shao, Jun,Shen, Chen,Shi, Yi,Tang, Mengwei,Xin, Yu,Zhang, Liang

, (2022/03/09)

N-demethylases have been reported to remove the methyl groups on primary or secondary amines, which could further affect the properties and functions of biomacromolecules or chemical compounds; however, the substrate scope and the robustness of N-demethylases have not been systematically investigated. Here we report the recreation of natural evolution in key microdomains of the Thermomicrobium roseum sarcosine oxidase (TrSOX), an N-demethylase with marked stability (melting temperature over 100 C) and enantioselectivity, for enhanced substrate scope and catalytic efficiency on -C-N-bonds. We obtained the structure of TrSOX by crystallization and X-ray diffraction (XRD) for the initial framework. The natural evolution in the nonconserved residues of key microdomains—including the catalytic loop, coenzyme pocket, substrate pocket, and entrance site—was then identified using ancestral sequence reconstruction (ASR), and the substitutions that accrued during natural evolution were recreated by site-directed mutagenesis. The single and double substitution variants catalyzed the N-demethylation of N-methyl-L-amino acids up to 1800- and 6000-fold faster than the wild type, respectively. Additionally, these single substitution variants catalyzed the terminal N-demethylation of non-amino-acid compounds and the oxidation of the main chain -C-N- bond to a -C=N- bond in the nitrogen-containing heterocycle. Notably, these variants retained the enantioselectivity and stability of the initial framework. We conclude that the variants of TrSOX are of great potential use in N-methyl enantiomer resolution, main-chain Schiff base synthesis, and alkaloid modification or degradation.

Method for photolysis of amido bonds

-

Paragraph 0046; 0048-0049; 0110-0113, (2021/06/26)

The invention discloses a method for photo-splitting amido bonds, wherein the method is mild in reaction condition and can realize splitting of amido bonds by using illumination. The method for photo-splitting the amido bonds comprises the following steps: reacting 2,4-dinitrofluorobenzene with an amino group of a substance which contains alpha amino acid at the tail end and is shown as a structural formula I to generate a compound 1 represented by a structural formula II; and under light irradiation, carrying out amido bond cleavage reaction on the compound 1, wherein R1 is a side chain group of alpha-amino acid, and R2 is aryl, aliphatic hydrocarbon, -CH(R)-COOH or polypeptide.

Three diketomorpholines from a Penicillium sp. (strain G1071)

Al Subeh, Zeinab Y.,Raja, Huzefa A.,Burdette, Joanna E.,Falkinham, Joseph O.,Hemby, Scott E.,Oberlies, Nicholas H.

, (2021/07/14)

Three previously undescribed diketomorpholine natural products, along with the known phenalenones, herqueinone and norherqueinone, were isolated from the mycoparasitic fungal strain G1071, which was identified as a Penicillium sp. in the section Sclerotiora. The structures were established by analyzing NMR data and mass spectrometry fragmentation patterns. The absolute configurations of deacetyl-javanicunine A, javanicunine C, and javanicunine D, were assigned by examining ECD spectra and Marfey's analysis. The structural diversity generated by this fungal strain was interesting, as only a few diketomorpholines (~17) have been reported from nature.

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