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(-)-Weinsure

D-(-)-Tartaric Acid  Struktur
147-71-7
CAS-Nr.
147-71-7
Bezeichnung:
(-)-Weinsure
Englisch Name:
D-(-)-Tartaric Acid
Synonyma:
TARTARIC ACID;(2S,3S)-2,3-DIHYDROXYSUCCINIC ACID;d-tartaric;D-TA;(S,S)-TARTARIC ACID;tartaricacidd-minus;(2S,3S)-2,3-Dihydroxybutanedioic acid;(2S,3S)-(-)-TARTARIC ACID;(2S,3S)-(-)-TARTARIC ACID FOR THE RESOLU;cas147-71-7
CBNumber:
CB3693922
Summenformel:
C4H6O6
Molgewicht:
150.09
MOL-Datei:
147-71-7.mol

(-)-Weinsure Eigenschaften

Schmelzpunkt:
172-174 °C(lit.)
alpha 
-12.1 º (c=20, H2O)
Siedepunkt:
191.59°C (rough estimate)
Dichte
1,8 g/cm3
Brechungsindex
-12.5 ° (C=5, H2O)
Flammpunkt:
210 °C
storage temp. 
Store below +30°C.
L?slichkeit
water: soluble100mg/mL, clear, colorless
Aggregatzustand
Crystals or Crystalline Powder
pka
3.0, 4.4(at 25℃)
Farbe
White
Geruch (Odor)
odorless
Optische Aktivit?t
[α]20/D 13.5±0.5°, c = 10% in H2O
Wasserl?slichkeit
1394 g/L (20 ºC)
Sensitive 
Light Sensitive
Merck 
14,9068
BRN 
1725145
Dielectric constant
35.9(-10℃)
Stabilit?t:
Stable. Incompatible with oxidizing agents, bases, reducing agents. Combustible.
InChIKey
FEWJPZIEWOKRBE-LWMBPPNESA-N
LogP
-1.081 (est)
CAS Datenbank
147-71-7(CAS DataBase Reference)
NIST chemische Informationen
D-Tartaric acid(147-71-7)
EPA chemische Informationen
Butanedioic acid, 2,3-dihydroxy-, (2S,3S)- (147-71-7)
Sicherheit
  • Risiko- und Sicherheitserkl?rung
  • Gefahreninformationscode (GHS)
Kennzeichnung gef?hrlicher Xi
R-S?tze: 36/37/38
S-S?tze: 26-36/37-37/39-36
WGK Germany  3
RTECS-Nr. WW7875000
Selbstentzündungstemperatur 425 °C
Hazard Note  Light Sensitive
TSCA  Yes
HS Code  29181200
Bildanzeige (GHS) GHS hazard pictograms
Alarmwort Achtung
Gefahrenhinweise
Code Gefahrenhinweise Gefahrenklasse Abteilung Alarmwort Symbol P-Code
H318 Verursacht schwere Augensch?den. Schwere Augensch?digung Kategorie 1 Achtung GHS hazard pictogramssrc="/GHS05.jpg" width="20" height="20" /> P280, P305+P351+P338, P310
Sicherheit
P280 Schutzhandschuhe/Schutzkleidung/Augenschutz tragen.

(-)-Weinsure 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.
S36/37:Bei der Arbeit geeignete Schutzhandschuhe und Schutzkleidung tragen.
S37/39:Bei der Arbeit geeignete Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.

Beschreibung

D-Tartaric acid, also known as (S, S)-tartrate or D-threaric acid, belongs to the class of organic compounds known as sugar acids and derivatives. Sugar acids and derivatives are compounds containing a saccharide unit which bears a carboxylic acid group. D-Tartaric acid has been detected but not quantified in loquats (Eriobotrya japonica). This could make D-tartaric acid a potential biomarker for consuming these foods. D-Tartaric acid is a secondary metabolite. Secondary metabolites are metabolically or physiologically non-essential metabolites that may serve as defense or signalling molecules. In some cases, they are molecules that arise from the incomplete metabolism of other secondary metabolites.

Chemische Eigenschaften

D-Tartaric acid is a white crystalline dicarboxylic acid found in many plants, particularly tamarinds and grapes. It is an acidulant that occurs naturally in grapes. It is hygroscopic and rapidly soluble, with a solubility of 150 g in 100 ml of distilled water at 25°c. It has a slightly tarter taste than citric acid, with a tartness equivalent of 0.8–0.9. It augments the flavor of fruits in which it is a natural constituent. It is used in grapeand limeflavored beverages and grape-flavored jellies. It is used as an acidulant in baking powder and as a synergist with antioxidants to prevent rancidity.

Verwenden

D-(-)-Tartaric acid is commonly used as a resolving agent in organic synthesis. It is the synthetic enantiomer of L-(+)-Tartaric acid and is utilized in the production of synthetic analgesics. Tartaric acid is the second largest alpha hydroxy acid (AHA) in terms of size, with glycolic acid being the smallest and citric acid being the largest. It serves as a precursor for the synthesis of ester derivatives such as D-tartaric acid diethyl ester, D-tartaric acid dimethyl ester, and D-tartaric acid diiso-propyl ester. Moreover, it is employed in the creation of chiral aziridine derivative, which is a common intermediate for manufacturing hydroxyethylamine class HIV protease inhibitors like saquinavir, amprenavir, and nelfinavir. In the food industry, it is extensively used as a beer foaming agent, for regulating food acidity, and as a flavoring agent. However, due to its challenging workability and potential skin irritation, it is not frequently utilized in cosmetic or anti-aging preparations.

Definition

ChEBI: D-tartaric acid is the D-enantiomer of tartaric acid. It has a role as an Escherichia coli metabolite. It is a conjugate acid of a D-tartrate(1-). It is an enantiomer of a L-tartaric acid.

Allgemeine Beschreibung

D-(-)-Tartaric acid is a polycrystalline solid, widely used as food additive. It has been reported to exhibit piezoelectric effect.

l?uterung methode

Crystallise the acid from distilled H2O or *benzene/diethyl ether containing 5% of pet ether (b 60-80o) (1:1). Soxhlet extraction with diethyl ether has been used to remove an impurity absorbing at 265nm. It has also been crystallised from absolute EtOH/hexane and dried in a vacuum for 18hours [Kornblum & Wade J Org Chem 52 5301 1987]. [Beilstein 3 IV 1229.]

(-)-Weinsure Upstream-Materialien And Downstream Produkte

Upstream-Materialien

Downstream Produkte


(-)-Weinsure Anbieter Lieferant Produzent Hersteller Vertrieb H?ndler.

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147-71-7((-)-Weinsure)Verwandte Suche:


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  • TARTARIC ACID [DEXTRO (+)]
  • TARTARIC ACID UNNATURAL
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  • (2S,3S)-D-(-)-TARTARIC ACID
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  • Butanedioic acid, 2,3-dihydroxy-, (2S,3S)-
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