[A10435] CAS 52-90-4 | L-Cysteine, 98+% | Alfa
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Brand: Alfa Aesar
52-90-4 | C3H7NO2S | cysteine zystein Hcys cisteina
Chemical Identifiers
CAS
52-90-4
Molecular Weight (g/mol)
121.15
Synonym
cysteine zystein Hcys cisteina
SMILES
NC(CS)C(O)=O
InChI Key
XUJNEKJLAYXESH-UHFFFAOYNA-N
Molecular Formula
C3H7NO2S
IUPAC Name
2-amino-3-sulfanylpropanoic acid
Specifications
Appearance (Color)
White
Form
Crystals or powder or crystalline powder or fused solid
Assay (Non-aqueous acid-base Titration)
≥98.0 to ≤102.0% (non-U.S. specification)
Assay from Suppliers CofA
≥98.0% (U.S. specification)
Comment
Specification differs for U.S. and non-U.S. material where indicated
설명
L-Cysteine 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. Also used for the cleavage of disulfide bonds in the hair’s keratin. 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. Its derivative, N-acetyl-L-cysteine is used as a dietary supplement. It acts as an antidote to acetaminophen overdose and prevents liver failure. It protects nerves from oxidation and thereby prevents illnesses like Alzheimer’s and Parkinson’s. Being an essential amino acid, it used as animal feed especially for sheep, which is responsible the growth of wool.
This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.
Applications
L-Cysteine 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. Also used for the cleavage of disulfide bonds in the hair′s keratin. 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. Its derivative, N-acetyl-L-cysteine is used as a dietary supplement. It acts as an antidote to acetaminophen overdose and prevents liver failure. It protects nerves from oxidation and thereby prevents illnesses like Alzheimer′s and Parkinson′s. Being an essential amino acid, it used as animal feed especially for sheep, which is responsible the growth of wool.
L-Cysteine 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. Also used for the cleavage of disulfide bonds in the hair′s keratin. 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. Its derivative, N-acetyl-L-cysteine is used as a dietary supplement. It acts as an antidote to acetaminophen overdose and prevents liver failure. It protects nerves from oxidation and thereby prevents illnesses like Alzheimer′s and Parkinson′s. Being an essential amino acid, it used as animal feed especially for sheep, which is responsible the growth of wool.
Solubility
Soluble in water, alcohol, acetic acid and aqueous ammonia. Insoluble in ether, acetone, ethyl acetate, benzene, carbon disulfide and carbon tetrachloride
Notes
Air sensitive. Incompatible with strong oxidizing agents.
Other References:
Merck Index:14,2781Beilstein:1721408
GHS Hazard and Precautionary Statements
Hazard Statements:Warning
GHS H StatementH302 Harmful if swallowed.
Precautionary Statements:GHS P Statement
P264-P270-P301+P312-P330-P501a
Wash thoroughly after handling.
Do not eat, drink or smoke when using this product.
IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell.
Rinse mouth.
Dispose of contents/container in accordance with local/regional/national/international regulations.
P264-P270-P301+P312-P330-P501a
Wash thoroughly after handling.
Do not eat, drink or smoke when using this product.
IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell.
Rinse mouth.
Dispose of contents/container in accordance with local/regional/national/international regulations.
Risk & Safety
TSCA:YesRTECS Number:HA1600000
경고:RUO – Research Use Only
CAS52-90-4FORMULAC3H7NO2SEINECS200-158-2MDLMFCD00064306
| Pakage | 1000g, 250g, 50G |
|---|---|
| brand | Alfa Aesar |
