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Basic Information
CAS No.: 4298-52-6
Name: 2-Ethynylthiophene
Article Data: 1
Molecular Structure:
Molecular Structure of 4298-52-6 (2-Ethynylthiophene)
Formula: C6H4S
Molecular Weight: 108.164
Synonyms: 2-Thienylacetylene;2-Thienylethyne;2-Ethynylthiophene;2-Acetylenethiophene;
Density: 1.11 g/cm3
Boiling Point: 150 °C at 760 mmHg
Flash Point: 28.4 °C
Hazard Symbols: IrritantXi
Risk Codes: 10-36/37/38
Safety: 16-23-26-36/37/39
PSA: 28.24000
LogP: 1.72940
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    2-ethynylthiophene

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    2-Ethynylthiophene

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  • 2-Ethynylthiophene

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    2-Ethynylthiophene

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Chemistry

Molecular Structure of 2-Ethynylthiophene (CAS NO.4298-52-6):

IUPAC Name: 2-ethynylthiophene
CAS: 4298-52-6
Empirical Formula: C6H4S
Molecular Weight: 108.161 
H bond acceptors: 0
H bond donors: 0
Freely Rotating Bonds: 0
Polar Surface Area: 28.24 Å2
Index of Refraction: 1.571
Molar Refractivity: 31.95 cm3
Molar Volume: 97.1 cm3
Surface Tension: 42.3 dyne/cm
Density: 1.11 g/cm3
Flash Point: 28.4 °C
Enthalpy of Vaporization: 37.09 kJ/mol
Boiling Point: 150 °C at 760 mmHg
Vapour Pressure: 5 mmHg at 25°C
storage temp: Store Cold
Product Categories of 2-Ethynylthiophene (CAS NO.4298-52-6): Thiophenes & Benzothiophenes; Thiophenes & Benzothiophenes

Safety Profile

Hazard Codes: IrritantXi
Risk Statements: 10-36/37/38 
R10:Flammable. 
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements: 16-23-26-36/37/39 
S16:Keep away from sources of ignition. 
S23:Do not breathe vapour. 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection.
Hazard Note: Irritant

Specification

  2-Ethynylthiophene , with CAS number of 4298-52-6, can be called 2-Ethynylthiophene ; timtec-bb sbb008821 ; Thiophene, 2-ethynyl- (6CI, 7CI, 8CI, 9CI) ; 2-Ethynylthiophene 90% .