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4347-31-3

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Basic Information
CAS No.: 4347-31-3
Name: 2-Formylthiophene-3-boronic acid
Article Data: 4
Molecular Structure:
Molecular Structure of 4347-31-3 (2-Formylthiophene-3-boronic acid)
Formula: C5H5BO3S
Molecular Weight: 155.97
Synonyms: 2-Formyl-3-thiopheneboronic acid;2-Formylthien-3-ylboronic acid;Boronic acid, (2-formyl-3-thienyl)- (9CI);3-Thiopheneboronicacid, 2-formyl- (7CI,8CI);
EINECS: -0
Density: 1.41 g/cm3
Melting Point: 167-193 °C(lit.)
Boiling Point: 396.7 °C at 760 mmHg
Flash Point: 193.7 °C
Appearance: White to off-white or beige powder
Hazard Symbols: R36/37/38:Irritating to eyes, respiratory system and skin.;
Risk Codes: 36/37/38
Safety: 26-36/37/39
PSA: 85.77000
LogP: -0.75960
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    (2-Formylthiophen-3-yl)boronic acid

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Chemistry

Molecular Structure of 2-Fluoro-4-nitrobenzotrifluoride (CAS NO.4347-31-3):

IUPAC Name: (2-formylthiophen-3-yl)boronic acid
Empirical Formula: C5H5BO3S
Molecular Weight: 155.9674
H bond acceptors: 3
H bond donors: 2
Freely Rotating Bonds: 4
Polar Surface Area: 63.77 Å2
Index of Refraction: 1.573
Molar Refractivity: 36.39 cm3
Molar Volume: 110.4 cm3
Polarizability: 14.42*10-24cm3
Surface Tension: 57.2 dyne/cm
Density: 1.41 g/cm3
Flash Point: 193.7 °C
Enthalpy of Vaporization: 68.23 kJ/mol
Boiling Point: 396.7 °C at 760 mmHg
Vapour Pressure: 5.27E-07 mmHg at 25°C 
Melting Point: 167-193 °C(lit.)
Sensitive: Air Sensitive
BRN: 4393584
CAS DataBase Reference: 4347-31-3(CAS DataBase Reference)
Product Categories of 2-Fluoro-4-nitrobenzotrifluoride (CAS NO.4347-31-3): Aldehydes; Azoles; blocks; BoronicAcids; Boronic acids; Boronic Acid; Boronic Acids; Boronic Acids and Derivatives; Heteroaryl

Safety Profile

Risk Statements: 36/37/38 
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements: 26-36/37/39 
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.
WGK Germany: 3

Specification

 2-Fluoro-4-nitrobenzotrifluoride , with CAS number of 4347-31-3, can be called 2-Formylthiophene-3-boronic acid ; (2-Formyl-3-thienyl)boronic acid ; 2-Formyl-3-thiopheneboronic acid ; 3-Boronothiophene-2-carboxaldehyde ; 2-Formylthiophene-3-Boronic ; 2-Formyl-3-thiopheneboronic acid,97% .  2-Formylthiophene-3-boronic acid (CAS NO.4347-31-3) is a white to off-white or beige powder.