Undecandisaeure

Bezeichnung:Undecandisaeure

Englisch Name:Undecanedioic acid

CBNumberCB6424163

SummenformelC11H20O4

Molgewicht216.27

Synonyma

Undecandisaeure

Undecandisaeure physikalisch-chemischer Eigenschaften

Schmelzpunkt	108-110 °C (lit.)
Siedepunkt	389.33°C (rough estimate)
Dichte	1.1629 (rough estimate)
Dampfdruck	10Pa at 20℃
Brechungsindex	1.4421 (estimate)
storage temp.	Sealed in dry,Room Temperature
Löslichkeit	methanol: 10 mg/mL, clear
Aggregatzustand	Solid
pka	4.48±0.10(Predicted)
Farbe	White to Off-White
Wasserlöslichkeit	5.10g/L(21 ºC)
BRN	1780537
InChIKey	LWBHHRRTOZQPDM-UHFFFAOYSA-N
LogP	2.8 at 25℃
CAS Datenbank	1852-04-6(CAS DataBase Reference)
NIST chemische Informationen	Undecanedioic acid(1852-04-6)
EPA chemische Informationen	Undecanedioic acid (1852-04-6)

Sicherheit

Kennzeichnung gefährlicher	Xi
R-Sätze:	36/37/38
S-Sätze:	26-36
WGK Germany	3
HS Code	29171900

Gefahreninformationscode (GHS)

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.
Chemische Eigenschaften
white to light yellow powder
Verwenden
Undecanedioic Acid is a bioactive compound found in Polygala tenuifolia root which is used as a functional food due to its attractive health benefits.
Definition
ChEBI: An alpha,omega-dicarboxylic acid that is nonane with two carboxylic acid groups at positions C-1 and C-9.
Flammability and Explosibility
Non flammable
Synthese
Undecanedioic acid is obtained by reacting α -nitro ketone and NaOH in MeOH.To a solution of α -nitro ketone (0.7 mmol) in MeOH (4.2 ml), 25 ml of 0.5 M Na2HPO4 in a 1 N of NaOH were added and the resulting mixture was heated at 70 °C for 1-4 h, then Oxone (1.75 mmol) in water (3 ml) was added to the cold solution (r. t.). After 4 h the mixture was diluted with brine (10 ml), acidified to pH=2 with a 10% solution of HCl and extracted with EtOAc (3 x 20 ml). The combined organic layers were washed with brine (10 ml), dried over Na2SO4 and evaporated to yield pure dicarboxylic acid.

Fig The synthetic method 2 of Undecanedioic acid.
Source
Undecanedioic acid is a natural product found in Aloe africana, Phaseolus vulgaris, and other organisms with data available.