DL-Threonin Produkt Beschreibung

DL-Threonine Struktur
80-68-2
  • CAS-Nr.80-68-2
  • Bezeichnung:DL-Threonin
  • Englisch Name:DL-Threonine
  • Synonyma:DL-Threonin
    DL-Thr;THREONINE;DL-Thr-OH;Radish Seed;DL-Threonin;DL-Threoine;H-DL-THR-OH;DL-Theronine;DL-THREONINE;dl-tthreonine
  • CBNumber:CB4475055
  • Summenformel:C4H9NO3
  • Molgewicht:119.12
  • MOL-Datei:80-68-2.mol
DL-Threonin physikalisch-chemischer Eigenschaften
  • Schmelzpunkt: :244 °C (dec.)(lit.)
  • Siedepunkt: :222.38°C (rough estimate)
  • alpha  :[α]D20 0±1.0゜ (c=6, H2O)
  • Dichte :1.3126 (rough estimate)
  • Brechungsindex :1.4183 (estimate)
  • storage temp.  :Store at RT.
  • pka :2.09(at 25℃)
  • Aggregatzustand :Powder
  • Farbe :White
  • Wasserlöslichkeit :200 g/L (25 ºC)
  • Merck  :14,9380
  • BRN  :1721647
  • CAS Datenbank :80-68-2(CAS DataBase Reference)
  • NIST chemische Informationen :DL-Threonine(80-68-2)
  • EPA chemische Informationen :Threonine(80-68-2)
Sicherheit
  • Kennzeichnung gefährlicher :Xi
  • R-Sätze: :36/37/38
  • S-Sätze: :24/25-37/39-26
  • WGK Germany  :3
  • TSCA  :Yes
  • HS Code  :29225000

DL-Threonine 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.
  • Beschreibung Threonine (abbreviated as Thr or T) is an α-amino acid with the chemical formula HO2CCH(NH2)CH(OH)CH3. Its codons are ACU, ACA, ACC, and ACG. This essential amino acid is classified as polar. Together with serine, threonine is one of two proteinogenic amino acids bearing an alcohol group (tyrosine is not an alcohol but a phenol, since its hydroxyl group is bonded directly to an aromatic ring, giving it different acid/base and oxidative properties). It is also one of two common amino acids that bear a chiral side chain, along with isoleucine.
    The threonine residue is susceptible to numerous posttr anslational modifications. The hydroxy side-chain can undergo Olinked glycosylation. In addition, threonine residues undergo phospho rylation through the action of a threonine kinase. In its phosphorylated form, it can be referred to as phospho threonine.
  • Chemische Eigenschaften White crystalline powder
  • Occurrence Foods high in threonine include cottage cheese, poultry, fish, meat, lentils, Black turtle bean and Sesame seeds.
    Racemic threonine can be prepared from crotonic acid by alphafunctionalization using mercury (II) acetate.
  • History Threonine was discovered as the last of the 20 common proteinogenic amino acids in the 1930s by William Cumming Rose.
  • Trademarks L -Threonine is JAN.
  • Biosynthese As an essential amino acid, threonine is not synthesized in humans, hence we must ingest threonine in the form of threoninecontaining proteins. In plants and microorganisms, threonine is synthesized from aspartic acid via α-aspartyl-semialdehyde and homoserine. Homoserine undergoes O-phosphorylation; this phosphate ester undergoes hydrolysis concomitant with relocation of the OH group. Enzymes involved in a typical biosynthesis of threonine include :
    aspartokinase
    β-aspartate semialdehyde dehydrogenase
    homoserine dehydrogenase
    homoserine kinase
    threonine synthase.
  • Stoffwechsel Threonine is metabolized in two ways:
    It is converted to pyruvate via threonine dehydrogenase. An intermediate in this pathway can undergo thiolysis with CoA to produce acetyl-CoA and glycine.
    In humans, it is converted to α-ketobutyrate in a less common pathway via the enzyme serine dehydratase, and thereby enters the pathway leading to succinyl-CoA.
    .
  • Stereoisomerism Threonine is one of two proteinogenic amino acids with two chiral centers. Threonine can exist in four possible stereo isomers with the following configurations: (2S,3R), (2R,3S), (2S,3S) and (2R,3R). However, the name L-threonine is used for one single diastereomer, (2S,3R)-2-amino-3-hydroxybutanoic acid. The second stereoisomer (2S,3S), which is rarely present in nature, is called L-allo-threonine. The two stereo isomers (2R,3S)- and (2R,3R)-2-amino-3-hydroxy butanoic acid are only of minor importance.
DL-Threonine Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
DL-Threonin Anbieter Lieferant Produzent Hersteller Vertrieb Händler.
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80-68-2, DL-Threonine Verwandte Suche:
  • ALLOTHREONINE, DL-(RG)
  • THREONINE(allo-free), DL-(RG)
  • DL-Threonin
  • dl-tthreonine
  • H-DL-Thr-OH (DL-Threonine)
  • A-AMINO-B-HYDROXYBUTYRIC ACID
  • DL-THREONINE extrapure CHR
  • DL-threonine, 99.5%
  • rac-(R*)-2-[(S*)-1-Hydroxyethyl]glycine
  • rac-Threonine
  • Radish Seed
  • DL-Theronine
  • DL-THREONINE
  • DL-2-AMINO-3-HYDROXYBUTANOIC ACID
  • DL-2-AMINO-3-HYDROXYBUTYRIC ACID
  • ALPHA-AMINO-BETA-HYDROXYBUTYRIC ACID
  • (+/-)-2-AMINO-3-HYDROXYBUTYRIC ACID
  • 2-AMINO-3-HYDROXYBUTYRIC ACID
  • THREONINE, DL-
  • THREONINE
  • (R*,S*)-2-AMINO-3-HYDROXYBUTYRIC ACID
  • DL-Threonicne
  • DL-THREONINE, FREE OF ALLOTHREONINE
  • DL-Threoine
  • DL-Threonine (contains DL-Allothreonine)
  • DL-Thr-OH
  • <small>DL</small>-Threonine
  • <small>DL</small>-Threonine (contains <small>DL</small>-Allothreonine)
  • DL-THREONINE ALLO-FREE
  • DL-THREONINE ALLO-FREE CELL CULTURE*TEST ED
  • Dl-ThreonineForBiochemistry99+%
  • DL-Threonine,99%
  • DL-Threonine, 99.50%
  • (n)-2-amino-3-hydroxybutyric acid
  • BioChemical
  • Amino Acid Derivatives
  • Amino Acids and Peptides
  • Biochemicals and Reagents
  • Amino Acids
  • Specialty Synthesis
  • Peptide Synthesis
  • 80-68-2
  • DL-Threonine≥ 99% (Titration)
  • DL-Thr
  • Amino Acids
  • Amino Acid Derivatives
  • Threonine [Thr, T]
  • alpha-Amino Acids
  • Biochemistry
  • Amino Acids
  • amino acid
  • 72-19-5;80-68-2
  • CH3CHOHCHNH2COOH
  • H-DL-THR-OH
  • DL-AMINO-HYDROXYBUTYRIC ACID
  • DL-ALPHA-AMINO-BETA-HYDROXYBUTYRIC ACID