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Cas Database |
| Name |
2,2':5',2''-Terthiophene |
EINECS | -0 |
| CAS No. | 1081-34-1 | Density | 1.318 g/cm3 |
| PSA | 84.72000 | LogP | 5.20510 |
| Solubility | Insoluble in water. | Melting Point |
93-95 °C(lit.) |
| Formula | C12H8S3 | Boiling Point | 361.3 °C at 760 mmHg |
| Molecular Weight | 248.394 | Flash Point | 128.4 °C |
| Transport Information | N/A | Appearance | Yellow to yellow-brown powder |
| Safety | 22-24/25 | Risk Codes | 36/37/38 |
| Molecular Structure |
|
Hazard Symbols |
 F
|
| Synonyms |
2,2',2''-Terthiophene;2,2'-Bithiophene, 5-(2-thienyl)-;2,2':5',2''-Terthienyl;2,5-Di(2-thienyl)thiophene;Trithiophene;a-Terthienyl;a-Terthiophene;a-Trithienyl; |
Article Data | 8 |
2,2':5',2''-Terthiophene Chemical Properties
IUPAC Name: 2,5-Dithiophen-2-ylthiophene
Following is the structure of 2,2':5',2''-Terthiophene (CAS NO.1081-34-1):
Empirical Formula: C12H8S3
Molecular Weight: 248.3869 g/mol
Molar Refractivity: 70.58 cm3
Molar Volume: 188.4 cm3
Density: 1.318 g/cm3
Flash Point: 128.4 °C
Melting point: 93-95 °C
Index of Refraction: 1.672
Surface Tension: 50.9 dyne/cm
Enthalpy of Vaporization: 58.32 kJ/mol
Boiling Point: 361.3 °C at 760 mmHg
Vapour Pressure: 4.36E-05 mmHg at 25 °C
Product Categories: Thiophenes;pharmacetical; Functional Materials; Highly Purified Reagents; Other Categories; Reagents for Conducting Polymer Research; Refined Products by Sublimation; Thiophene Derivatives (for Conduting Polymer Research)
Water Solubility of 2,2':5',2''-Terthiophene (CAS NO.1081-34-1): 0.423 mg/L at 25 °C
Appearance of 2,2':5',2''-Terthiophene (CAS NO.1081-34-1): yellow to yellow-brown
Storage tempreture of 2,2':5',2''-Terthiophene (CAS NO.1081-34-1): 2-8 °C
Canonical SMILES: C1=CSC(=C1)C2=CC=C(S2)C3=CC=CS3
InChI: InChI=1S/C12H8S3/c1-3-9(13-7-1)11-5-6-12(15-11)10-4-2-8-14-10/h1-8H
InChIKey: KXSFECAJUBPPFE-UHFFFAOYSA-N
2,2':5',2''-Terthiophene Toxicity Data With Reference
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| rat | LD50 | intraperitoneal | 110mg/kg (110mg/kg) | Pharmacology and Toxicology Vol. 77, Pg. 164, 1995. |
2,2':5',2''-Terthiophene Safety Profile
Risk Statements: 36/37/38
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements: 22-24/25
S22:Do not breathe dust.
S24/25:Avoid contact with skin and eyes.
WGK Germany: 3
RTECS: WZ9717750
F: 8-10
2,2':5',2''-Terthiophene Specification
2,2':5',2''-Terthiophene , its cas register number is 1081-34-1. It also can be called 2,2',5',2''-Terthienyl ; alpha-Terthienyl ; alpha-Terthiophene ; and alpha-Terthienyl . Its classification code are Agricultural Chemical; Anti-infective agents; Antiviral agents; Dermatologic Agents; Insecticide; Insecticides; Pesticides; Photosensitizing agents and Radiation-Sensitizing Agents.
2,2':5',2''-Terthiophene (CAS NO.1081-34-1) should avoid the condition like incompatible materials. It is not compatible with strong oxidizing agents. And also prevent it to broken down into hazardous decomposition products: carbon monoxide, oxides of sulfur, carbon dioxide. However, its hazardous polymerization has not been reported.
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