L-Threonin
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- CAS-Nr.
- 72-19-5
- Bezeichnung:
- L-Threonin
- Englisch Name:
- L-Threonine
- Synonyma:
- THREONINE;THR;H-THR-OH;Threonin;2-AMINO-3-HYDROXYBUTANOIC ACID;l-threonin;(2S,3R)-2-Amino-3-hydroxybutanoic acid;THREONINE, L-;L-2-AMINO-3-HYDROXYBUTYRIC ACID;L-A-AMINO-B-HYDROXYBUTYRIC ACID
- CBNumber:
- CB5702648
- Summenformel:
- C4H9NO3
- Molgewicht:
- 119.12
- MOL-Datei:
- 72-19-5.mol
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L-Threonin Eigenschaften
- Schmelzpunkt:
- 256 °C (dec.) (lit.)
- Siedepunkt:
- 222.38°C (rough estimate)
- alpha
- -28.4 º (c=6, H2O)
- Dichte
- 1.3126 (rough estimate)
- FEMA
- 4710 | L-THREONINE
- Brechungsindex
- -28 ° (C=6, H2O)
- storage temp.
- 2-8°C
- Löslichkeit
- H2O: 50 mg/mL
- Aggregatzustand
- powder
- pka
- 2.09(at 25℃)
- Farbe
- Yellow
- PH
- 5-6 (100g/l, H2O, 20℃)
- Geruch (Odor)
- ADM L-Threonine is a high quality product specifically designed for the feed industry. Produced from advanced technology, ADM L-Threonine is composed of 100% isomerically pure L-Threonine, which translates into 100% bioavailability for swine, poultry, and other animals.mild savory
- Geruchsart
- savory
- Optische Aktivität
- [α]20/D 28.5±0.5°, c = 5% in H2O
- Wasserlöslichkeit
- 90 g/L (20 ºC)
- JECFA Number
- 2119
- Merck
- 14,9380
- BRN
- 1721646
- Stabilität:
- Stable. Incompatible with strong oxidizing agents.
- InChIKey
- AYFVYJQAPQTCCC-GBXIJSLDSA-N
- LogP
- -2.94
- CAS Datenbank
- 72-19-5(CAS DataBase Reference)
- NIST chemische Informationen
- Threonine(72-19-5)
- EPA chemische Informationen
- L-Threonine (72-19-5)
L-Threonin Chemische Eigenschaften,Einsatz,Produktion Methoden
R-Sätze Betriebsanweisung:
R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.
S-Sätze Betriebsanweisung:
S24/25:Berührung mit den Augen und der Haut vermeiden.
S37/39:Bei der Arbeit geeignete Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
Chemische Eigenschaften
A white or almost white, crystalline powder or colourless crystals.
Verwenden
L-Threonine is used to alleviate anxiety and mild depression. It is an important component of many proteins such as tooth enamel, collagen, and elastin. It is an important amino acid in the nervous system and plays a vital role in porphyrin and fat metabolism. It is useful in intestinal disorders and indigestion. It is also used as a prodrug to reliably elevate brain glycine levels.
Definition
ChEBI: An optically active form of threonine having L-configuration.
Sicherheitsprofil
Moderately toxic by
intraperitoneal route. When heated to
decomposition it emits toxic fumes of NOx.
läuterung methode
Likely impurities are allo-threonine and glycine. Crystallise L-threonine from H2O by adding 4volumes of EtOH. Dry and store it in a desiccator. It also crystallises from 80% EtOH to give hexagonal plates m 262-263o(dec). It sublimes at 200-226o/0.3mm with 99.6% recovery and unracemised [Gross & Gradsky J Am Chem Soc 77 1678 1955]. [Elliot J Chem Soc 62 1950, Greenstein & Winitz The Chemistry of the Amino Acids J. Wiley, Vol 1 pp 176-183, Vol 3 pp 2238-2257 1961, Beilstein 4 IV 3171.]
L-Threonin Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
L-Threonin Anbieter Lieferant Produzent Hersteller Vertrieb Händler.
Global( 760)Lieferanten
72-19-5(L-Threonin)Verwandte Suche:
- L(-)-THREONINE
- L-THREONINE
- H-L-THR-OH
- H-THR-OH-THREONINE
- L-THREONINE extrapure CHR
- L-Tlhreonine
- L-α-amino-β-hydroxy-butiric acid
- L-β-hydroxy-2-aminobutyric acid
- 2-Amino-3-hydroxybutanoic acid, [R-(R*,S*)]
- (2S,3R)-L-Threonine
- L-Threonine,(2S,3R)-2-Amino-3-hydroxybutyric acid
- L-Threonine (200 mg)
- L-Threonine, 98% 100GR
- L-Threonine, 98% 25GR
- L-Threonine, 98% 5GR
- L-Threonine-d2
- (2S,3R)-(-)-THREONINE FOR SYNTHESIS
- Threonine Solution (T)
- Threonine (T)
- L-Threonine, Thr
- (2S,3R)-(-)-THREONINE
- (2S,3R)-(-)-2-AMINO-3-HYDROXYBUTYRATE
- (2S,3R)-2-AMINO-3-HYDROXYBUTYRIC ACID
- 2-AMINO-3-HYDROXYBUTYRIC ACID
- RARECHEM AB PP 1459
- (2S,3R)-2-Amino-3-hydroxybutyric acid~H-Thr-OH
- L-THREONINE (USP)
- Threonine (T) Solution, 100ppm
- L-THREONINE (13C4,D5,15N)
- L-THREONINE (4-13C,2,3-D2)
- L-THREONINE (D5, 15N)
- L-THREONINE, FREE OF ALLOTHREONINE
- L-THREONINE (USP/EP/JP)
- L-THREONINE, 98%, 99% EE/GLC
- L-Threonine FCC
- L-Threonine, Feed Grade
- L-Threonine>99%
- L-ThreonineForBiochemistry99+%
- L-ThreonineForBiochemistry-(2S,3R)-2-Amino-3-HydroxybutyricAcid)
- L-ThreonineForBiochemistry
- L-Threonine, 98+%
- L-Threonine, allo-Free
- L-Threonine, USP Grade
- L-Threonine-UL-13C4
- L-THREONINE,CRYSTAL
- L-THREONINE,CRYSTAL,FCC
- THREONINE,CRYSTAL,USP
- THREONINE, L-(RG)
- L-Threonine Vetec(TM) reagent grade, >=98%
- L-Threonine, Animal-Free
- L-THREONINE BIOXTRA, >= 99.5% (NT)
- L-THREONINE, REAGENT GRADE, >=98% (H
- L-Threonine≥ 99.5% (Assay)
- (s)-threonine
- Butanoic acid, 2-amino-3-hydroxy-, [R-(R*,S*)]-
- L-alpha-Amino-beta-hydroxybutyric acid
- L-CH3CH(OH)CH(NH2)COOH
- L-THREONINE UNLABELED
