L-Cysteine hydrochloride monohydrate

Bezeichnung:L-Cysteine hydrochloride monohydrate

CAS-Nr7048-04-6

Englisch Name:L-Cysteine hydrochloride monohydrate

CBNumberCB9694981

SummenformelC3H10ClNO3S

Molgewicht175.63

MOL-Datei7048-04-6.mol

L-Cysteine hydrochloride monohydrate physikalisch-chemischer Eigenschaften

Schmelzpunkt	175°C
alpha	+6.0～+7.5゜ (20℃/D)(c=8,6mol/l HCl)(calculated on the dried basis)
Dichte	1.54 g/cm3
Dampfdruck	<0.1 hPa (20 °C)
Brechungsindex	6 ° (C=8, 1mol/L HCl)
storage temp.	Keep in dark place,Inert atmosphere,Room temperature
Löslichkeit	H₂O: 1 M at 20 °C, clear, colorless
Aggregatzustand	Solid
Farbe	White
PH	0.8-1.2 (100g/l, H2O, 20℃)
Säure-Base-Indikators(pH-Indikatoren)	1 - 2
Optische Aktivität	[α]20/D +5.6±0.3°, c = 5% in 5 M HCl
Wasserlöslichkeit	Soluble in cold water.
Sensitive	Hygroscopic
maximale Wellenlänge (λmax)	λ: 260 nm Amax: 1.0 λ: 280 nm Amax: 0.3
Merck	14,2781
BRN	5158059
Stabilität	Stable. Incompatible with strong oxidizing agents, most common metals, hydrogen chloride.
LogP	0.235 (est)
CAS Datenbank	7048-04-6(CAS DataBase Reference)

Sicherheit

Kennzeichnung gefährlicher	Xi
R-Sätze:	36/37/38
S-Sätze:	26-36
WGK Germany	3
RTECS-Nr.	HA2285000
F	3-10-23
TSCA	Yes
HS Code	29309013

Gefahreninformationscode (GHS)

L-Cysteine hydrochloride monohydrate Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.
S-Sätze Betriebsanweisung:
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.
Chemische Eigenschaften
white crystalline powder
Verwenden
L-Cysteine hydrochloride monohydrate has been used as a component of yeast dropout media for culturing yeasts. It has also been used as a component of differential reinforced clostridial broth (DRCM) for the isolation of clostridia.
Verwenden
L-Cysteine is a non-essential amino acid that can be synthesized by the human body under normal physiological conditions if a sufficient quantity of methionine is available. L-Cysteine is commonly use d as a precursor in the food and pharmaceutical industries. L-Cysteine is used as a processing aid for baking, as an additive in cigarettes, as well as in the preparation of meat flavours.
Verwenden
L-Cysteine hydrochloride monohydrate is used as a precursor in food, pharmaceutical and personal care products. It is actively involved in the production of flavors such as meat flavor obtained by reacting with sugars. It plays an important role as a key raw material for the manufacture of N-acetyl-L-cysteine, S-carboxymethyl-L-cysteine and L-cysteine base. It is involved in the treatment of liver disease as an antioxidant and antidote. Being an essential amino acid, it used as animal feed especially for sheep, which is responsible the growth of wool.
Definition
ChEBI: A hydrate that is the monohydrate form of L-cysteine hydrochloride.
Allgemeine Beschreibung
This product is supplied from Wacker FERMOPURE^? material, but is sold for R&D use only, not for drug, household or other uses.
Biochem/physiol Actions
NMDA glutamatergic receptor antagonist.
läuterung methode
Likely impurities are cystine and tyrosine. Crystallise the salt from MeOH by adding diethyl ether, or from hot 20% HCl. Dry it under vacuum over P2O5. Hygroscopic. [Beilstein 4 III 1580, 1600.]

L-Cysteine hydrochloride monohydrate Upstream-Materialien And Downstream Produkte

L-Cysteine hydrochloride monohydrate Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

7048-04-6, L-Cysteine hydrochloride monohydrate Verwandte Suche:

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