| Identification | More | [Name]
L-Cysteine hydrochloride monohydrate | [CAS]
7048-04-6 | [Synonyms]
3-MERCAPTO-2-AMINOPROPIONIC ACID HYDROCHLORIDE
3-MERCAPTO-2-AMINOPROPIONIC ACID HYDROCHLORIDE MONOHYDRATE
alpha-amino-beta-mercapto-propionic acid hydrochloride monohydrate
CYSTEINE HCL H2O
CYSTEINE HYDROCHLORIDE MONOHYDRATE
CYSTEINI HYDROCHLORIDUM MONOHYDRICUM
H-CYS-OH HCL H2O
H-L-CYS-OH HCL H2O
L-2-AMINO-3-MERCAPTOPROPANOIC ACID HYDROCHLORIDE, MONOHYDRATE
L-2-AMINO-3-MERCAPTOPROPIONIC ACID MONOHYDROCHLORIDE
L-CYSTEINE HCL H2O
L-CYSTEINE HCL HYDRATE
L-CYSTEINE HCL MONOHYDRATE
L-CYSTEINE HYDROCHLORIDE
L-CYSTEINE HYDROCHLORIDE 1-HYDRATE
L-CYSTEINE HYDROCHLORIDE HYDRATE
L-(+)-CYSTEINE HYDROCHLORIDE, MONOHYDRATE
L-CYSTEINE HYDROCHLORIDE MONOHYDRATE
L-CYSTEINE HYDROCHLORIDE SALT H2O
L-CYSTEINE HYDROCHLORIDE SALT MONOHYDRATE | [EINECS(EC#)]
200-157-7 | [Molecular Formula]
C3H10ClNO3S | [MDL Number]
MFCD00065606 | [Molecular Weight]
175.63 | [MOL File]
7048-04-6.mol |
| Chemical Properties | Back Directory | [Appearance]
white crystalline powder | [Melting point ]
175°C | [alpha ]
+6.0～+7.5゜ (20℃/D)(c=8,6mol/l HCl)(calculated on the dried basis) | [density ]
1.54 g/cm3 | [vapor pressure ]
<0.1 hPa (20 °C) | [refractive index ]
6 ° (C=8, 1mol/L HCl) | [storage temp. ]
Store at RT. | [solubility ]
H2O: 1 M at 20 °C, clear, colorless
| [form ]
Solid | [color ]
White | [PH]
0.8-1.2 (100g/l, H2O, 20℃) | [PH Range]
1 - 2 | [Stability:]
Stable. Incompatible with strong oxidizing agents, most common metals, hydrogen chloride. | [optical activity]
[α]20/D +5.6±0.3°, c = 5% in 5 M HCl | [Water Solubility ]
Soluble in cold water. | [Sensitive ]
Hygroscopic | [λmax]
λ: 260 nm Amax: 1.0
λ: 280 nm Amax: 0.3 | [Merck ]
14,2781 | [BRN ]
5158059 | [LogP]
0.235 (est) | [CAS DataBase Reference]
7048-04-6(CAS DataBase Reference) |
| Questions And Answer | Back Directory | [Application]
L-cysteine ??hydrochloride monohydrate has been used in protocols to isolate dorsal root ganglion neurons (DRG). It was also used in research to test its effect as an inhibitor of enzymatic browning of apples.
| [General descriptio]
L-cysteine ??hydrochloride monohydrate (LCHCMH) is a water-soluble salt of the non-essential amino acid L-cysteine. It is widely used in the pharmaceutical industry. The thermodynamic characteristics of LCHCMH in aqueous solution have been reported. [1] It can be crystallized in an orthogonal system with the P212121 space group. Its nonlinear optical (NLO) characteristics have been studied in single crystals grown by unidirectional Sankaranarayanan-Ramasamy (SR) technology.
|
| Safety Data | Back Directory | [Hazard Codes ]
Xi | [Risk Statements ]
R36/37/38:Irritating to eyes, respiratory system and skin . | [Safety Statements ]
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36:Wear suitable protective clothing . | [WGK Germany ]
3
| [RTECS ]
HA2285000 | [F ]
3-10-23 | [TSCA ]
Yes | [HS Code ]
29309099 |
| Hazard Information | Back Directory | [Chemical Properties]
white crystalline powder
| [Uses]
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. | [Definition]
ChEBI: A hydrate that is the monohydrate form of L-cysteine hydrochloride. | [General Description]
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. | [Purification Methods]
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.] |
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