alpha-Terthiophene

Names

[ Name ]:
alpha-Terthiophene

[Synonym ]:
Terthiophene
2,2':5',2"-Terthiophene
2,2':5',2''-Terthiophene
2,2':5'2''-Terthiophene
2,2:5,2-Terthiophene
a-Terthienyl
MFCD00012167
5-(2-Thienyl)-2,2'-bithiophene
2,5-Di(2-thienyl)thiophene
α-Terthienyl
2,5-dithiophen-2-ylthiophene
[2,2';5',2'']Terthiophene

Biological Activity

[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.

[Related Catalog]:

Signaling Pathways >> Others >> Others

[In Vitro]

In the most common isomer of Terthiophene, two thienyl groups are connected via their 2 positions to a central thiophene, also at the carbon atoms flanking the sulfur.

[References]

[1]. Casado J, et al. Alternated quinoid/aromatic units in terthiophenes building blocks for electroactive narrow band gap polymers. Extended spectroscopic, solid state, electrochemical, and theoretical study. J Phys Chem B. 2005 Sep 8;109(35):16616-27.

[Related Small Molecules]

Chemical & Physical Properties

[ Density]:
1.3±0.1 g/cm3

[ Boiling Point ]:
361.3±32.0 °C at 760 mmHg

[ Melting Point ]:
93-95 °C(lit.)

[ Molecular Formula ]:
C₁₂H₈S₃

[ Molecular Weight ]:
248.387

[ Flash Point ]:
128.4±11.3 °C

[ Exact Mass ]:
247.978806

[ PSA ]:
84.72000

[ LogP ]:
5.56

[ Vapour Pressure ]:
0.0±0.8 mmHg at 25°C

[ Index of Refraction ]:
1.672

[ Storage condition ]:
2-8°C

MSDS

Click to get detail MSDS

Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :: WZ9717750

CAS REGISTRY NUMBER :: 1081-34-1

LAST UPDATED :: 199606

DATA ITEMS CITED :: 1

MOLECULAR FORMULA :: C12-H8-S3

MOLECULAR WEIGHT :: 248.38

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 110 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: PHTOEH Pharmacology and Toxicology (Copenhagen). (Munksgaard International Pub., POB 2148, DK-1016 Copenhagen K, Denmark) V.60- 1987- Volume(issue)/page/year: 77,164,1995

Safety Information

[ Personal Protective Equipment ]:
Eyeshields;Gloves;type N95 (US);type P1 (EN143) respirator filter

[ Hazard Codes ]:
F: Flammable;

[ Risk Phrases ]:
R36/37/38

[ Safety Phrases ]:
S22-S24/25

[ RIDADR ]:
NONH for all modes of transport

[ WGK Germany ]:
3

[ RTECS ]:
WZ9717750

[ HS Code ]:
2934999090

Synthetic Route

Click to get detail synthetic route

Customs

[ HS Code ]: 2934999090

[ Summary ]:
2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

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