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α-Terthiophene

CAS# 1081-34-1

α-Terthiophene

Catalog No. BCN8380----Order now to get a substantial discount!

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Quality Control of α-Terthiophene

Number of papers citing our products

Chemical structure

α-Terthiophene

3D structure

Chemical Properties of α-Terthiophene

Cas No. 1081-34-1 SDF Download SDF
PubChem ID 65067 Appearance Light yellow crystalline powder
Formula C12H8S3 M.Wt 248.39
Type of Compound N/A Storage Desiccate at -20°C
Solubility Soluble in Chloroform,Dichloromethane,Ethyl Acetate,DMSO,Acetone,etc.
Chemical Name 2,5-dithiophen-2-ylthiophene
SMILES C1=CSC(=C1)C2=CC=C(S2)C3=CC=CS3
Standard InChIKey KXSFECAJUBPPFE-UHFFFAOYSA-N
Standard InChI InChI=1S/C12H8S3/c1-3-9(13-7-1)11-5-6-12(15-11)10-4-2-8-14-10/h1-8H
General tips For obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.Stock solution can be stored below -20℃ for several months.
We recommend that you prepare and use the solution on the same day. However, if the test schedule requires, the stock solutions can be prepared in advance, and the stock solution must be sealed and stored below -20℃. In general, the stock solution can be kept for several months.
Before use, we recommend that you leave the vial at room temperature for at least an hour before opening it.
About Packaging 1. The packaging of the product may be reversed during transportation, cause the high purity compounds to adhere to the neck or cap of the vial.Take the vail out of its packaging and shake gently until the compounds fall to the bottom of the vial.
2. For liquid products, please centrifuge at 500xg to gather the liquid to the bottom of the vial.
3. Try to avoid loss or contamination during the experiment.
Shipping Condition Packaging according to customer requirements(5mg, 10mg, 20mg and more). Ship via FedEx, DHL, UPS, EMS or other couriers with RT, or blue ice upon request.

α-Terthiophene Dilution Calculator

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α-Terthiophene Molarity Calculator

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Preparing Stock Solutions of α-Terthiophene

1 mg 5 mg 10 mg 20 mg 25 mg
1 mM 4.0259 mL 20.1296 mL 40.2593 mL 80.5185 mL 100.6482 mL
5 mM 0.8052 mL 4.0259 mL 8.0519 mL 16.1037 mL 20.1296 mL
10 mM 0.4026 mL 2.013 mL 4.0259 mL 8.0519 mL 10.0648 mL
50 mM 0.0805 mL 0.4026 mL 0.8052 mL 1.6104 mL 2.013 mL
100 mM 0.0403 mL 0.2013 mL 0.4026 mL 0.8052 mL 1.0065 mL
* Note: If you are in the process of experiment, it's necessary to make the dilution ratios of the samples. The dilution data above is only for reference. Normally, it's can get a better solubility within lower of Concentrations.

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References on α-Terthiophene

Thiotagetin B and tagetannins A and B, new acetylenic thiophene and digalloyl glucose derivatives from Tagetes minuta and evaluation of their in vitro antioxidative and anti-inflammatory activity.[Pubmed:29288025]

Fitoterapia. 2018 Mar;125:78-88.

The three new metabolites: thiotagetin B (2) [(Z)-1''-([2,2'-bithiophen]-5-yl)-8''-chloro-6'',11''-dimethylundeca-6'',10''-die n-2''-yn-9''-one], tagetannin A (9) [3,4-bis-(galloyl-3,5-dimethyl ether)-(alpha/beta)-d-glucopyranose], and tagetannin B (10) [2,3-bis-(galloyl-3,5-dimethyl ether)-(alpha/beta)-d-glucopyranose], along with ecliptal (5-formyl-alpha-terthiophene) (1), 5-(4-hydroxybut-1-ynyl)-2,2'-bithiophene (3), scopoletin (4), p-hydroxybenzoic acid (5), protocatechuic acid methyl ester (6), gallic acid (7), and patuletin 7-O-beta-d-glucoside (8) were isolated from the aerial parts of Tagetes minuta L. (Asteraceae). Their structures were verified by extensive spectroscopic analyses as well as by comparison with literature data. The isolated compounds were evaluated for their antioxidant and anti-inflammatory activities using DPPH and enzyme-linked immunosorbent assays, respectively. Compounds 5-10 possessed the highest antioxidant potential with a scavenging activity (SCA) approximately 74 to 93% of DPPH radicals. Moreover, 5-10 displayed significant anti-inflammatory potential, while 4 showed moderate activity. Compounds 5-10 exhibited significant decreases in NFkappaB p65, TNF-alpha, and IL-6 levels at all tested concentrations.

Gateway state-mediated, long-range tunnelling in molecular wires.[Pubmed:29376529]

Nanoscale. 2018 Feb 8;10(6):3060-3067.

If the factors controlling the decay in single-molecule electrical conductance G with molecular length L could be understood and controlled, then this would be a significant step forward in the design of high-conductance molecular wires. For a wide variety of molecules conducting by phase coherent tunnelling, conductance G decays with length following the relationship G = Ae(-betaL). It is widely accepted that the attenuation coefficient beta is determined by the position of the Fermi energy of the electrodes relative to the energy of frontier orbitals of the molecular bridge, whereas the terminal anchor groups which bind to the molecule to the electrodes contribute to the pre-exponential factor A. We examine this premise for several series of molecules which contain a central conjugated moiety (phenyl, viologen or alpha-terthiophene) connected on either side to alkane chains of varying length, with each end terminated by thiol or thiomethyl anchor groups. In contrast with this expectation, we demonstrate both experimentally and theoretically that additional electronic states located on thiol anchor groups can significantly decrease the value of beta, by giving rise to resonances close to EF through coupling to the bridge moiety. This interplay between the gateway states and their coupling to a central conjugated moiety in the molecular bridges creates a new design strategy for realising higher-transmission molecular wires by taking advantage of the electrode-molecule interface properties.

Description

2,2':5',2''-Terthiophene (α-Terthiophene) is an oligomer of the heterocycle thiophene. 2,2':5',2''-Terthiophene has been employed as building block for the organic semi-conductor polythiophene.

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