BioBioPha
China
Product Name: alpha-Terthiophene
Price: ￥Inquiry/5mg
Purity: 98.0%
Stocking Period: 10 Day
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Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 2,2':5',2''-Terthiophene
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

1081-34-1

1081-34-1 structure

Name: alpha-Terthiophene
Chemical Name: 2,2':5',2''-terthiophene
CAS Number: 1081-34-1
Molecular Formula: C₁₂H₈S₃
Molecular Weight: 248.387
Catalog: Pharmaceutical intermediate Heterocyclic compound Thiophene compound
Create Date: 2018-02-05 08:00:00
Modify Date: 2026-07-03 09:52:21
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.

Name	2,2':5',2''-terthiophene
Synonyms	2,2′:5′,2′′-Terthiophene,α-Terthienyl, 2,5-Di(2-thienyl)thiophene 2,2,5,2-Terthiophene in isooctane 2,2':5'2''-Terthiophene MFCD00012167 Osa（2-octen-1-ylsuccinic anhydride, mixture of cis and trans） alpha-terthiophene 5',2''Terthiophene 2,5-Di(2-thienyl)thiophene 2,2':5',2''-Terthiophene 2,2 ': 5', 2 '' - Trithiophene a-Terthienyl 2,2,5,2-Terthiophene in toluene 2,5-DI(2-THIENYL)THIOPHENE 2''-TERTHIOPHENE 2,2':5',2 [2,2';5',2'']Terthiophene 2,5-BIS(2-THIENYL)THIOPHENE 2,2':5' 2,5-Di(thien-2-yl)thiophene 2,2',2''-Terthiophene 2,5-dithiophen-2-ylthiophene J-1081 2,2':5',2'-TERTHIOPHENE Alpha-terthienyl Alpha-trithiophene 2,3-dithiophen-2-ylthiophene TERTHIOPHENE 2,2:5,2-Terthiophene 2,2',5',2''-TERTHIOPHENE 2,5-Bis(thiophene-2-yl)thiophene Terthiophene 2,2':5',2''-Terthiophene (=alpha-Terthienyl) 2,2':5',2"-Terthiophene 5-BroMo-[2,2' 2,2'':5'',2''''-Terthiophene 2,2':5',2''-Terthiophene (purified by sublimation) 2,2':5',2-TERTHIENYL 2,2':5',2''-Terthiophene (Synonyms: α-Terthiophene alpha-TERTHIENYL (2,2':5',2 2,5-Di(2-thienyl)thiophene alpha-Terth 2,2':5',2''-Terthiophene (7CI, 8CI, 9CI, ACI) 2,2':5',2''-Terthiophene (=α-Terthienyl) α-Terthiophene α-Terthienyl, 2,5-Di(2-thienyl)thiophene 2,2'':5'',2''''-Terthiophene, 10 mM in DMSO 3TH TTh 5',2'']terthiophene Sanlian thiophene 2,5-Di(2-thienyl)thiophene alpha-Terthienyl S1130 5-(2-Thienyl)-2,2'-bithiophene α-Terthienyl 2,2 :5 ,2 -Terthiophene 2,2':5',2''-TERTHIOPHENE ISO 9001：2015 REACH terthienyl

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.

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

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

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

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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