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(R)-3-Hydroxybuttersure

(R)-3-Hydroxybutyric acid Struktur
625-72-9
CAS-Nr.
625-72-9
Bezeichnung:
(R)-3-Hydroxybuttersure
Englisch Name:
(R)-3-Hydroxybutyric acid
Synonyma:
(R)-3-Hydroxybutanoic acid;d-beta-hydroxybutyrate;D-3-Hydroxybutyric acid;(R)-β-Hydroxybutyric acid;(R)-3-Hydroxybutyrate;D(-)-3-Hydroxybutyrate;D-(-)-3-Hydroxybutyrate;(R)-3-Hydroxybuttersure;Lactic acid impurity 118;(R)-3-HYDROXYBUTYRIC ACID
CBNumber:
CB5421549
Summenformel:
C4H8O3
Molgewicht:
104.1
MOL-Datei:
625-72-9.mol

(R)-3-Hydroxybuttersure Eigenschaften

Schmelzpunkt:
49-50 °C(lit.)
alpha 
-25 º (C=6% IN H2O)
Siedepunkt:
90-92 °C(Press: 0.08 Torr)
Dichte
1.195±0.06 g/cm3(Predicted)
Flammpunkt:
112 °C
storage temp. 
Sealed in dry,2-8°C
L?slichkeit
DMSO (Slightly), Ethyl Acetate (Slightly), Methanol (Slightly), Water (Slightly)
Aggregatzustand
Oil to Semi-Solid
pka
4.36±0.10(Predicted)
Farbe
Colourless to Pale Yellow
Optische Aktivit?t
[α]20/D 25±1°, c = 6% in H2O
BRN 
1720568
InChI
InChI=1S/C4H8O3/c1-3(5)2-4(6)7/h3,5H,2H2,1H3,(H,6,7)/t3-/m1/s1
InChIKey
WHBMMWSBFZVSSR-GSVOUGTGSA-N
SMILES
C(O)(=O)C[C@H](O)C
CAS Datenbank
625-72-9(CAS DataBase Reference)
EPA chemische Informationen
Butanoic acid, 3-hydroxy-, (3R)- (625-72-9)
Sicherheit
  • Risiko- und Sicherheitserkl?rung
  • Gefahreninformationscode (GHS)
Kennzeichnung gef?hrlicher Xi
R-S?tze: 36/37/38
S-S?tze: 26-36
WGK Germany  3
3-10
Bildanzeige (GHS) GHS hazard pictograms
Alarmwort Warnung
Gefahrenhinweise
Code Gefahrenhinweise Gefahrenklasse Abteilung Alarmwort Symbol P-Code
H315 Verursacht Hautreizungen. Hautreizung Kategorie 2 Warnung GHS hazard pictogramssrc="/GHS07.jpg" width="20" height="20" /> P264, P280, P302+P352, P321,P332+P313, P362
H319 Verursacht schwere Augenreizung. Schwere Augenreizung Kategorie 2 Warnung GHS hazard pictogramssrc="/GHS07.jpg" width="20" height="20" /> P264, P280, P305+P351+P338,P337+P313P
H335 Kann die Atemwege reizen. Spezifische Zielorgan-Toxizit?t (einmalige Exposition) Kategorie 3 (Atemwegsreizung) Warnung GHS hazard pictogramssrc="/GHS07.jpg" width="20" height="20" />
Sicherheit
P261 Einatmen von Staub vermeiden.
P305+P351+P338 BEI KONTAKT MIT DEN AUGEN: Einige Minuten lang behutsam mit Wasser spülen. Eventuell vorhandene Kontaktlinsen nach M?glichkeit entfernen. Weiter spülen.

(R)-3-Hydroxybuttersure Chemische Eigenschaften,Einsatz,Produktion Methoden

R-S?tze Betriebsanweisung:

R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.

S-S?tze Betriebsanweisung:

S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.

Beschreibung

(R)-3-Hydroxybutanoic acid is a metabolite, and converted from acetoacetic acid catalyzed by 3-hydroxybutyrate dehydrogenase. It is a monomer of PHB (poly[(R)-3-hydroxybutyrate]) with wide industrial and medical applications. It can also serve as chiral precursor for synthesis of pure biodegradable PHB and its copolyesters.

Verwenden

(R)-3-Hydroxybutyric acid may be used in the preparation of copolymers by reacting with various hydroxyalkanoic acids. It may also be used in the preparation of (3R,4R)-4-acetoxy-3-[(R)-1-(formyloxy)ethyl]-2-azetidinone.

Definition

ChEBI: (R)-3-hydroxybutyric acid is the R-enantiomer of 3-hydroxybutyric acid. Involved in the synthesis and degradation of ketone bodies, it can be used as an energy source by the brain during hypoglycaemia, and for the synthesis of biodegradable plastics. It is a sex pheremone in the European spider Linyphia triangularis. It has a role as a human metabolite, a pheromone and a fungal metabolite. It is a ketone body and a 3-hydroxybutyric acid. It is a conjugate acid of a (R)-3-hydroxybutyrate. It is an enantiomer of a (S)-3-hydroxybutyric acid.

Synthese

Procedure for the Synthesis of (R)-3-Hydroxybutyric acid:Into a 50 ml flask was added 5N KOH (10 ml) which was cooled to 0 °C. Methyl [R]-3-Hydroxybutyrate (5 g) was then added with stirring over 1.5-h time period, and the temperature was maintained at 0 °C for 24 h. The reaction was terminated by the slow addition of 6N HC1 (8.3 ml) with stirring at 5 °C The resultant aqueous solution was then saturated with solid NaCl and extracted 20 times with 20 mL portions of diethyl ether. The organic extract was dried over anhydrous MgSO4 and the ether removed by rotary evaporation. The product was a white crystalline solid (3.8 g, yield 87%). NMR and IR were used to characterize the product.

(R)-3-Hydroxybuttersure Upstream-Materialien And Downstream Produkte

Upstream-Materialien

Downstream Produkte


(R)-3-Hydroxybuttersure Anbieter Lieferant Produzent Hersteller Vertrieb H?ndler.

Global( 147)Lieferanten
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GIHI CHEMICALS CO.,LIMITED
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ChiRial Biomaterial Co Ltd
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Chongqing Chemdad Co., Ltd
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sales@chemdad.com China 39894 58

625-72-9((R)-3-Hydroxybuttersure)Verwandte Suche:


  • (R)-(-)-3-HYDROXYBUTYRIC ACID
  • (R)-3-HYDROXYBUTYRIC ACID
  • (R)-3-Hydroxybutyrate
  • D-(-)-3-Hydroxybutyrate
  • D(-)-3-Hydroxybutyrate
  • Butanoic acid, 3-hydroxy-, (3R)-
  • 625-72-9 (R)-3-HYDROXYBUTYRIC ACID
  • d-beta-hydroxybutyrate
  • D-3-Hydroxybutyric acid
  • (R)-3-Hydroxybutanoic acid
  • (R)-β-Hydroxybutyric acid
  • (R)-3-Hydroxybuttersure
  • (3R)-3-hydroxybutanoic acid
  • Lactic acid impurity 118
  • 625-72-9
  • Chiral Building Blocks
  • Asymmetric Synthesis
  • Carboxylic Acids
  • Organic Building Blocks
  • Carboxylic Acids
  • Chiral Building Blocks
  • Organic Building Blocks
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