2,2':5',2''-Terthiophene

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

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 (CAS NO.1081-34-1) hasn't been listed as a carcinogen by ACGIH, IARC, NTP, or CA Prop 65. And you can see actual entry in RTECS for complete information.

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 , 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.