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251-41-2

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Basic Information
CAS No.: 251-41-2
Name: Thieno[3,2-b]thiophene
Article Data: 11
Cas Database
Molecular Structure:
Molecular Structure of 251-41-2 (Thieno[3,2-b]thiophene)
Formula: C6H4S2
Molecular Weight: 140.23
Synonyms: 1,4-Dithiapentalene;1,4-Thiophthene;
Density: 1.367 g/cm3
Melting Point: 56 °C
Boiling Point: 223.4 °C at 760 mmHg
Flash Point: 63.1 °C
Hazard Symbols: Xn
Risk Codes: 22-36/37/38
Safety: 26-36/37
PSA: 56.48000
LogP: 2.96280
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Chemistry

Molecule structure of Thieno[3,2-b]thiophene (CAS NO.251-41-2):

IUPAC Name: Thieno[3,2-b]thiophene 
Molecular Weight: 140.22596 g/mol
Molecular Formula: C6H4S2 
Density: 1.367 g/cm3 
Melting Point: 56 °C
Boiling Point: 223.4 °C at 760 mmHg 
Flash Point: 63.1 °C
Index of Refraction: 1.728
Molar Refractivity: 40.86 cm3
Molar Volume: 102.5 cm3
Polarizability: 16.19×10-24 cm3
Surface Tension: 53.6 dyne/cm 
Enthalpy of Vaporization: 44.11 kJ/mol
Vapour Pressure: 0.144 mmHg at 25 °C
XLogP3-AA: 2.7
Exact Mass: 139.975442
MonoIsotopic Mass: 139.975442
Heavy Atom Count: 8
Canonical SMILES: C1=CSC2=C1SC=C2
InChI: InChI=1S/C6H4S2/c1-3-7-6-2-4-8-5(1)6/h1-4H
InChIKey: VJYJJHQEVLEOFL-UHFFFAOYSA-N
Product Categories of Thieno[3,2-b]thiophene (CAS NO.251-41-2): Electronic Chemicals; Fused Ring Systems

Safety Profile

Hazard Note: Harmful

Specification

 Thieno[3,2-b]thiophene (CAS NO.251-41-2) is also named as 1,4-Dithiapentalene 1,4-Thiophthene ; 4-Dithiapentalene 1,4-Thiophthene .

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