Thiophen-2,5-dicarbonsure

Bezeichnung:Thiophen-2,5-dicarbonsure

CAS-Nr4282-31-9

Englisch Name:2,5-Thiophenedicarboxylic acid

CBNumberCB9224515

SummenformelC6H4O4S

Molgewicht172.16

MOL-Datei4282-31-9.mol

Synonyma

Thiophen-2,5-dicarbonsure

Thiophen-2,5-dicarbonsure physikalisch-chemischer Eigenschaften

Schmelzpunkt	>300 °C (lit.)
Siedepunkt	272.46°C (rough estimate)
Dichte	1.473 (estimate)
Brechungsindex	1.5500 (estimate)
storage temp.	Keep in dark place,Sealed in dry,Room Temperature
Aggregatzustand	solid
pka	2.76±0.10(Predicted)
Farbe	White to Light yellow
Wasserlöslichkeit	Very soluble in water.
BRN	136781
CAS Datenbank	4282-31-9(CAS DataBase Reference)
EPA chemische Informationen	2,5-Thiophenedicarboxylic acid (4282-31-9)

Sicherheit

Kennzeichnung gefährlicher	Xi
R-Sätze:	36/37/38
S-Sätze:	26-36-37/39
WGK Germany	3
TSCA	Yes
HazardClass	IRRITANT
HS Code	29349990

Gefahreninformationscode (GHS)

2,5-Thiophenedicarboxylic acid Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.
S-Sätze Betriebsanweisung:
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.
S37/39:Bei der Arbeit geeignete Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
Chemische Eigenschaften
white to light yellow crystal powder
Verwenden
2,5-Thiophenedicarboxylic acid may be used as a thiophene based linker in the preparation of magnesium coordination networks. It may also be used as a precursor in the synthesis of 2,5-bis-benzoxazoyl-thiophene (EBF).
It may be used in the synthesis of the following:
- new cobalt(II) thiophenedicarboxylate coordination polymer
- novel mesogenic thiophene based supramolecular liquid crystals
- two novel coordination polymers with the formula {[Ln₂(2,5-tdc)₃(dmso)₂]H₂O}_n (Ln = Tb(III) and Dy(III)), (2,5-tdc² = 2,5-thiophenedicarboxylate and dmso = dimethylsulfoxide)
Synthesis Reference(s)
Journal of the American Chemical Society, 72, p. 2109, 1950 DOI: 10.1021/ja01161a065
Allgemeine Beschreibung
2,5-Thiophenedicarboxylic acid (2,5-TDCA, H₂TDC) is an important building block in the preparation of fluorescent brightening agent, fungicides and anti-cancer drug. It has been generated by chlorination of adipic acid using thionyl chloride. Due to its diverse coordination modes, it is an excellent choice as an aromatic linker to generate coordination networks. The enthalpies of combustion and sublimation of 2,5-thiophenedicarboxylic acid have been evaluated by rotary-bomb combustion calorimetry.

2,5-Thiophenedicarboxylic acid Upstream-Materialien And Downstream Produkte

Thiophen-2,5-dicarbonsure Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

4282-31-9, 2,5-Thiophenedicarboxylic acid Verwandte Suche:

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