Ethyl-L-tyrosinathydrochlorid

Bezeichnung:Ethyl-L-tyrosinathydrochlorid

CAS-Nr4089-07-0

Englisch Name:L-Tyrosine Ethyl Ester Hydrochloride

CBNumberCB4125992

SummenformelC11H16ClNO3

Molgewicht245.7

MOL-Datei4089-07-0.mol

Synonyma

Ethyl-L-tyrosinathydrochlorid

Ethyl-L-tyrosinathydrochlorid physikalisch-chemischer Eigenschaften

Schmelzpunkt	166-170 °C
alpha	[α]D20 +26～+30° (c=5, C2H5OH)
Brechungsindex	-6.5 ° (C=2, H2O)
storage temp.	Sealed in dry,Room Temperature
Löslichkeit	Soluble in Chloroform,Dichloromethane,Ethyl Acetate,DMSO,Acetone,etc.
Aggregatzustand	powder to crystal
Farbe	White to Almost white
Wasserlöslichkeit	Soluble in water (3.685e+005 mg/L @ 25°C (est.)).
BRN	4725904
InChIKey	BQULAXAVRFIAHN-PPHPATTJSA-N
LogP	1.060 (est)
CAS Datenbank	4089-07-0(CAS DataBase Reference)

Sicherheit

Kennzeichnung gefährlicher	Xi
R-Sätze:	36/37/38
S-Sätze:	22-24/25-37/39-26
WGK Germany	2
RTECS-Nr.	YP2580000
HS Code	29225090

Gefahreninformationscode (GHS)

L-Tyrosine Ethyl Ester Hydrochloride Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.
S-Sätze Betriebsanweisung:
S22:Staub nicht einatmen.
S24/25:Berührung mit den Augen und der Haut vermeiden.
Chemische Eigenschaften
White to off-white microcrystalline powder
Verwenden
L-Tyrosine Ethyl Ester Hydrochloride is used as a medical and organic intermediate and as an important amino protective agent. It is also used to introduce t-Boc protect gene.
Application
Papain is also used for synthesizing poly(L-tyrosine) and poly(L-glutamic acid) using L-tyrosine ethyl ester hydrochloride and L-glutamic acid diethyl ester hydrochloride as the substrates, respectively. The protease-catalyzed copolymerization of amino acids is first achieved by papain using L-glutamic acid ester and various amino acid esters as substrates.
A mixture of L-tyrosine ethyl ester hydrochloride, the appropriate acid anhydri-des, triethylamine and dry tetrahydrofuran, was warmed for an hour in an atmosphere of nitrogen. After removing the amine salt, Ic and Id became crystalline on standing overnight in the cold.
synthetische
synthesis of L-Tyrosine Ethyl Ester Hydrochloride: Esterification of 25 g. ol L-tyrosine (0.014 mole) with ethanolic hydrogen chloride gave 24.1 g. of L-tyrosine ethyl ester hydrochloride (80%). Liberation of the ester by slurrying the hydrochloride in chloroform rollowed by the addition of chloroform saturated with ammonia, removal of the ammonium chloride by filtration and evaporation of the chloroform gave 19.4 g. of L-tyrosine ethyl ester (67%), m.p. 106-108 ° .

L-Tyrosine Ethyl Ester Hydrochloride Upstream-Materialien And Downstream Produkte

Ethyl-L-tyrosinathydrochlorid Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

4089-07-0, L-Tyrosine Ethyl Ester Hydrochloride Verwandte Suche:

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