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2,5-Thiophenedicarboxylic Acid

2,5-Thiophenedicarboxylic Acid / CAS : 4282-31-9

Appearance White to yellowish crystalline powder UN 0
HS 29349990 DG Class 0
Synonyms Thiophene-2,5-Dicarboxylic Acid; Thiophene-2,5-Dicarboxyl Acid; 2,5-Dicarboxythiophene; 2,5--Thiophenedicarboxylic Acid
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Properties

Summary

Formula
C6H4O4S
Molecular Mass
172.15900
Exact Mass
171.98300
PSA
102.84000
Logp
1.14450
IUPAC
thiophene-2,5-dicarboxylic acid
SMILES
C1=C(SC(=C1)C(=O)O)C(=O)O

Attribute classification

Matter Classification
organic
Category
Auxiliary > Other Auxiliary Agent
Agrochemicals > Pesticide Intermediates
Dyestuffs and Pigments > Intermediates
Auxiliary > Fluorescent Brightener

Chemical and Physical Properties

Melting Point
>300 °C(lit.)
Density
1.473 (estimate)
Boiling Point
272.46°C (rough estimate)
Flash Point
222.7ºC
Appearance
White to yellowish crystalline powder

Export information

HS Code
29349990
Export Rebate
10%
UN No.
0
DG-Class
0
Risk Code
R36/37/38
Safety Label
Xi

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