ChemicalBook > CAS DataBase List > 2,2':5',2''-TERTHIOPHENE

2,2':5',2''-TERTHIOPHENE

Product Name
2,2':5',2''-TERTHIOPHENE
CAS No.
1081-34-1
Chemical Name
2,2':5',2''-TERTHIOPHENE
Synonyms
3TH;TTh;S1130;2,2':5';2,2':5',2;terthienyl;TERTHIOPHENE;a-Terthienyl;5-BroMo-[2,2';5-BroMo-[2,2'
CBNumber
CB7713541
Molecular Formula
C12H8S3
Formula Weight
248.39
MOL File
1081-34-1.mol
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2,2':5',2''-TERTHIOPHENE Property

Melting point:
93-95 °C(lit.)
Boiling point:
160 °C (0.1 mmHg)
Density 
1.4602 (rough estimate)
refractive index 
1.6200 (estimate)
Flash point:
160°C/0.1mm
storage temp. 
Keep in dark place,Sealed in dry,Room Temperature
solubility 
Chloroform (Slightly), Methanol (Slightly)
form 
Solid
color 
Light Yellow
Water Solubility 
Insoluble in water.
Merck 
14,9174
BRN 
178604
CAS DataBase Reference
1081-34-1(CAS DataBase Reference)
EPA Substance Registry System
.alpha.-Terthiophene (1081-34-1)
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Safety

Risk Statements 
36/37/38
Safety Statements 
22-24/25
WGK Germany 
3
RTECS 
WZ9717750
8-10
HS Code 
29349990
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
311073
Product name
2,2′:5′,2′′-Terthiophene
Purity
99%
Packaging
1g
Price
$242
Updated
2024/03/01
TCI Chemical
Product number
T1196
Product name
2,2':5',2''-Terthiophene (purified by sublimation)
Purity
>98.0%(GC)
Packaging
1g
Price
$71
Updated
2024/03/01
TCI Chemical
Product number
T1196
Product name
2,2':5',2''-Terthiophene (purified by sublimation)
Purity
>98.0%(GC)
Packaging
5g
Price
$212
Updated
2024/03/01
Alfa Aesar
Product number
A16748
Product name
2,2':5',2''-Terthiophene, 99%
Packaging
1g
Price
$186
Updated
2024/03/01
Alfa Aesar
Product number
A16748
Product name
2,2':5',2''-Terthiophene, 99%
Packaging
5g
Price
$592.65
Updated
2024/03/01
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2,2':5',2''-TERTHIOPHENE Chemical Properties,Usage,Production

Chemical Properties

YELLOW TO YELLOW-BROWN POWDER

Uses

α-Terthienyl was first recognized as a nematicidal constituent of marigolds, but in the presence of light, it is also highly toxic to larvae of several insect species, including mosquitoes. This electron donor thiophenederivative phototoxin is biosynthesized from polyacetylene precursors and appears to function as a photosensitizer catalyzing the formation of reactive oxygen species at the target site (25).

Uses

2,2'':5'',2''''-Terthiophene is a thiophene compound isolated from the roots of Echinops transiliensis, and was studied for its larvicidal activity against Aedes aegypti. 2,2'':5'',2''''-Terthiophene also showed inhibitory effects on dispersal ability of Bursaphelenchus xylophilus when used synergistically with certain antibiotics.

Definition

ChEBI: 2,2':5',2''-terthiophene is a terthiophene.

Synthesis Reference(s)

Synthetic Communications, 19, p. 307, 1989 DOI: 10.1080/00397918908050983
Synthesis, p. 462, 1991 DOI: 10.1055/s-1991-26494

General Description

2,2′:5′,2′′-Terthiophene (TTh) may be prepared by nickel catalysed coupling reaction of grignard′s reagent derived from 2-bromothiophene and magnesium. It generates singlet oxygen. In nature, it is found in the floral extract of Tagetes minuta and Echinops grijisii. It is known to be toxic to mosquitoes. It also exihibits antifungal activity.

Metabolic pathway

When 14C-a-terthienyl is administered orally to rats in a single dose, two metabolites [1,4-di(2'-thienyl)]-1,4- butadione and 2-2' -bithiophene-5-carboxylic acid are identified in the urine.

Purification Methods

Possible impurities are bithienyl and polythienyls. Suspend it in H2O and steam distil it to remove bithienyl. The residue is cooled and extracted with CHCl3, dried (MgSO4), filtered, evaporated and the residue chromatographed on Al2O3 using pet ether/3% Me2CO as eluent. The terphenyl zone is then eluted from the Al2O3 with Et2O, the extract is evaporated and the residue is recrystallised from MeOH (40mL per g). The platelets are washed with cold MeOH and dried in air. [UV: Sease & Zechmeister J Am Chem Soc 69 270 1947; Uhlenbroek & Bijloo Recl Trav Chim Pays-Bas 79 1181 1960.] It has also been recrystallised from MeOH, *C6H6, pet ether or AcOH. [UV: Zechmeister & Sease J Am Chem Soc 69 273 1947, Steinkopf et al. Justus Liebigs Ann Chem 546 180 1941.] It is a phototoxic nematocide [Cooper & Nitsche Bioorg Chem 13 36 1985, Chan et al. Phytochem 14 2295 1975]. [Beilstein 19 III/IV 4763, 19/9 V 226.]

2,2':5',2''-TERTHIOPHENE Preparation Products And Raw materials

Raw materials

Preparation Products

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2,2':5',2''-TERTHIOPHENE Suppliers

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View Lastest Price from 2,2':5',2''-TERTHIOPHENE manufacturers

Shanghai UCHEM Inc.
Product
2,2':5',2''-TERTHIOPHENE 1081-34-1
Price
US $47.00-393.00/g
Min. Order
25g
Purity
0.98
Supply Ability
25kg
Release date
2023-12-25
Hebei Weibang Biotechnology Co., Ltd
Product
2,2':5',2''-TERTHIOPHENE 1081-34-1
Price
US $10.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
5tons
Release date
2024-12-04
Henan Fengda Chemical Co., Ltd
Product
alpha-Terthiophene 1081-34-1
Price
US $200.00-1.00/KG
Min. Order
1KG
Purity
99%, 99.5% Sublimated
Supply Ability
g-kg-tons, free sample is available
Release date
2023-12-30

1081-34-1, 2,2':5',2''-TERTHIOPHENERelated Search:


  • 2,5-BIS(2-THIENYL)THIOPHENE
  • 2,5-DI(2-THIENYL)THIOPHENE
  • 2,2′:5′,2′′-Terthiophene,α-Terthienyl, 2,5-Di(2-thienyl)thiophene
  • 2,2':5',2-TERTHIENYL
  • 2,2',5',2''-TERTHIOPHENE
  • 2,2':5',2''-Terthiophene 99%
  • 2,2':5',2''-Terthiophene (purified by sublimation)
  • ALPHA-TERTHIENYL
  • 2,5-Di(thien-2-yl)thiophene
  • 2,2 :5 ,2 -Terthiophene&nbsp
  • 2,5-Di(2-thienyl)thiophene alpha-Terthienyl
  • 2,2':5',2''-Terthiophene (=α-Terthienyl)
  • 5-BroMo-[2,2'
  • 2,3-dithiophen-2-ylthiophene
  • 2,2':5',2''-TERTHIOPHENE
  • TERTHIOPHENE
  • alpha-terthiophene
  • terthienyl
  • alpha-TERTHIENYL (2,2':5',2
  • 5',2''Terthiophene
  • 2,2':5'
  • 2''-TERTHIOPHENE
  • 2,2':5',2''-Terthiophene (=alpha-Terthienyl)
  • α-Terthienyl, 2,5-Di(2-thienyl)thiophene
  • Alpha-terthienyl,99+%
  • 2,5-Bis(thiophene-2-yl)thiophene
  • 3TH
  • a-Terthienyl
  • 2,2':5',2''-Terthiophene ,99%
  • 2,5-Di(2-thienyl)thiophene alpha-Terth
  • TTh
  • Alpha-trithiophene
  • JACS-1081-34-1
  • 2,2':5',2''-Terthiophene, 99%, for synthesis
  • α-Terthiophene
  • 2,2':5',2''-TERTHIOPHENE ISO 9001:2015 REACH
  • S1130
  • Sanlian thiophene
  • 2,2':5',2''-Terthiophene (7CI, 8CI, 9CI, ACI)
  • Osa(2-octen-1-ylsuccinic anhydride, mixture of cis and trans)
  • 2,2 ': 5', 2 '' - Trithiophene
  • 2,2',2''-Terthiophene
  • 2,2':5',2''-Terthiophene
  • 2,2',2''-Terthiophene
  • 2,2':5',2"-Terthiophene
  • 2,2':5',2
  • 2,2':5',2'-TERTHIOPHENE
  • 2,2,5,2-Terthiophene in isooctane
  • 2,2,5,2-Terthiophene in toluene
  • 5',2'']terthiophene
  • 5-BroMo-[2,2'
  • 1081-34-1
  • 1081-34-4
  • 108-34-1
  • C12H8S3
  • Heterocyclic Building Blocks
  • Thiophenes
  • Building Blocks