L-Cysteine hydrochloride monohydrate
Synonym(s):L -Cysteine hydrochloride monohydrate;Cys, L-Cysteinium Chloride Monohydrate, L-Cysteine Hydrochloride, Monohydrate
- CAS NO.:7048-04-6
- Empirical Formula: C3H10ClNO3S
- Molecular Weight: 175.63
- MDL number: MFCD00065606
- EINECS: 615-117-8
- SAFETY DATA SHEET (SDS)
- Update Date: 2024-08-21 22:41:43
What is L-Cysteine hydrochloride monohydrate?
Chemical properties
white crystalline powder
The Uses of L-Cysteine hydrochloride monohydrate
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.
The Uses of L-Cysteine hydrochloride monohydrate
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.
The Uses of L-Cysteine hydrochloride monohydrate
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.
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.]
Properties of L-Cysteine hydrochloride monohydrate
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. | Keep in dark place,Inert atmosphere,Room temperature |
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 |
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 |
Stability: | Stable. Incompatible with strong oxidizing agents, most common metals, hydrogen chloride. |
CAS DataBase Reference | 7048-04-6(CAS DataBase Reference) |
Safety information for L-Cysteine hydrochloride monohydrate
Signal word | Warning |
Pictogram(s) |
Exclamation Mark Irritant GHS07 |
GHS Hazard Statements |
H319:Serious eye damage/eye irritation |
Precautionary Statement Codes |
P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P280:Wear protective gloves/protective clothing/eye protection/face protection. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P337+P313:IF eye irritation persists: Get medical advice/attention. |
Computed Descriptors for L-Cysteine hydrochloride monohydrate
Abamectin manufacturer
JSK Chemicals
Innovative Health Care (India) Pvt. Ltd.
Pallav Chemicals And Solvents Pvt Ltd
ARRAKIS INDUSTRIES LLP
Techno Pharmchem
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