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6-Chloro-L-tryptophan 33468-35-8

6-Chloro-L-tryptophan 33468-35-8

CAS No.: 33468-35-8

6-Chloro-L-tryptophan is a tryptophan analogue. 6-Chloro-L-tryptophan can serve as a substrate for KtzQ.
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This product is for research use only, not for human use. We do not sell to patients.

6-Chloro-L-tryptophan is a tryptophan analogue. 6-Chloro-L-tryptophan can serve as a substrate for KtzQ.

Physicochemical Properties


Molecular Formula C11H11N2O2CL
Molecular Weight 238.67024
Exact Mass 238.05
CAS # 33468-35-8
PubChem CID 10062693
Appearance White to gray solid powder
Density 1.5±0.1 g/cm3
Boiling Point 476.9±45.0 °C at 760 mmHg
Melting Point 244-246ºC
Flash Point 242.2±28.7 °C
Vapour Pressure 0.0±1.3 mmHg at 25°C
Index of Refraction 1.702
LogP 1.63
Hydrogen Bond Donor Count 3
Hydrogen Bond Acceptor Count 3
Rotatable Bond Count 3
Heavy Atom Count 16
Complexity 275
Defined Atom Stereocenter Count 1
SMILES

C1=CC2=C(C=C1Cl)NC=C2C[C@@H](C(=O)O)N

InChi Key FICLVQOYKYBXFN-VIFPVBQESA-N
InChi Code

InChI=1S/C11H11ClN2O2/c12-7-1-2-8-6(3-9(13)11(15)16)5-14-10(8)4-7/h1-2,4-5,9,14H,3,13H2,(H,15,16)/t9-/m0/s1
Chemical Name

(2S)-2-amino-3-(6-chloro-1H-indol-3-yl)propanoic acid
HS Tariff Code 2934.99.9001
Storage

Powder-20°C 3 years

4°C 2 years

In solvent -80°C 6 months

-20°C 1 month

Shipping Condition Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)

Biological Activity


ln Vitro 6-Chloro-L-tryptophan (0-500 μM) does not inhibit D-amino acid oxidase (DAO) [2].
References

[1]. Tandem action of the O2- and FADH2-dependent halogenases KtzQ and KtzR produce 6,7-dichlorotryptophan for kutzneride assembly. J Am Chem Soc. 2008 Oct 29;130(43):14024-5.

[2]. A high-performance liquid chromatography assay with a triazole-bonded column for evaluation of d-amino acid oxidase activity. Biomed Chromatogr. 2016 Mar;30(3):384-9.

Additional Infomation 6-chloro-L-tryptophan is a non-proteinogenic L-alpha-amino acid that is L-tryptophan in which the hydrogen at position 6 on the indole ring has been replaced by a chlorine. It is a non-proteinogenic L-alpha-amino acid, a L-tryptophan derivative and an organochlorine compound. It is a tautomer of a 6-chloro-L-tryptophan zwitterion.

Solubility Data


Solubility (In Vitro) H2O : ~50 mg/mL (~209.49 mM)
Solubility (In Vivo) Note: Listed below are some common formulations that may be used to formulate products with low water solubility (e.g. < 1 mg/mL), you may test these formulations using a minute amount of products to avoid loss of samples.

Injection Formulations
(e.g. IP/IV/IM/SC)
Injection Formulation 1: DMSO : Tween 80: Saline = 10 : 5 : 85 (i.e. 100 μL DMSO stock solution 50 μL Tween 80 850 μL Saline)
*Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH ₂ O to obtain a clear solution.
Injection Formulation 2: DMSO : PEG300 :Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL DMSO 400 μLPEG300 50 μL Tween 80 450 μL Saline)
Injection Formulation 3: DMSO : Corn oil = 10 : 90 (i.e. 100 μL DMSO 900 μL Corn oil)
Example: Take the Injection Formulation 3 (DMSO : Corn oil = 10 : 90) as an example, if 1 mL of 2.5 mg/mL working solution is to be prepared, you can take 100 μL 25 mg/mL DMSO stock solution and add to 900 μL corn oil, mix well to obtain a clear or suspension solution (2.5 mg/mL, ready for use in animals).
Injection Formulation 4: DMSO : 20% SBE-β-CD in saline = 10 : 90 [i.e. 100 μL DMSO 900 μL (20% SBE-β-CD in saline)]
*Preparation of 20% SBE-β-CD in Saline (4°C,1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution.
Injection Formulation 5: 2-Hydroxypropyl-β-cyclodextrin : Saline = 50 : 50 (i.e. 500 μL 2-Hydroxypropyl-β-cyclodextrin 500 μL Saline)
Injection Formulation 6: DMSO : PEG300 : castor oil : Saline = 5 : 10 : 20 : 65 (i.e. 50 μL DMSO 100 μLPEG300 200 μL castor oil 650 μL Saline)
Injection Formulation 7: Ethanol : Cremophor : Saline = 10: 10 : 80 (i.e. 100 μL Ethanol 100 μL Cremophor 800 μL Saline)
Injection Formulation 8: Dissolve in Cremophor/Ethanol (50 : 50), then diluted by Saline
Injection Formulation 9: EtOH : Corn oil = 10 : 90 (i.e. 100 μL EtOH 900 μL Corn oil)
Injection Formulation 10: EtOH : PEG300:Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL EtOH 400 μLPEG300 50 μL Tween 80 450 μL Saline)

Oral Formulations Oral Formulation 1: Suspend in 0.5% CMC Na (carboxymethylcellulose sodium)
Oral Formulation 2: Suspend in 0.5% Carboxymethyl cellulose
Example: Take the Oral Formulation 1 (Suspend in 0.5% CMC Na) as an example, if 100 mL of 2.5 mg/mL working solution is to be prepared, you can first prepare 0.5% CMC Na solution by measuring 0.5 g CMC Na and dissolve it in 100 mL ddH2O to obtain a clear solution; then add 250 mg of the product to 100 mL 0.5% CMC Na solution, to make the suspension solution (2.5 mg/mL, ready for use in animals).
Oral Formulation 3: Dissolved in PEG400
Oral Formulation 4: Suspend in 0.2% Carboxymethyl cellulose
Oral Formulation 5: Dissolve in 0.25% Tween 80 and 0.5% Carboxymethyl cellulose
Oral Formulation 6: Mixing with food powders

Note: Please be aware that the above formulations are for reference only. InvivoChem strongly recommends customers to read literature methods/protocols carefully before determining which formulation you should use for in vivo studies, as different compounds have different solubility properties and have to be formulated differently.

 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 4.1899 mL 20.9494 mL 41.8989 mL
5 mM 0.8380 mL 4.1899 mL 8.3798 mL
10 mM 0.4190 mL 2.0949 mL 4.1899 mL
*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.