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L-Cysteine, 98+%, Alfa Aesar™

$50.77 - $628.19

Chemical Identifiers

CAS 52-90-4
Molecular Formula C3H7NO2S
Molecular Weight (g/mol) 121.154
MDL Number MFCD00064306
InChI Key XUJNEKJLAYXESH-REOHCLBHSA-N
Synonym 2r-2-amino-3-sulfanylpropanoic acid
PubChem CID 5862
ChEBI CHEBI:17561
IUPAC Name (2R)-2-amino-3-sulfanylpropanoic acid
SMILES C(C(C(=O)O)N)S
View More Specs

Products 3
Catalog Number Mfr. No. Quantity Price Quantity  
Catalog Number Mfr. No. Quantity Price Quantity  
AAA1043518 View Documents Thermo Fisher Scientific
A1043518
50g Each for $50.77
 
AAA1043530 View Documents Thermo Fisher Scientific
A1043530
250g Each for $176.24
 
AAA104350B View Documents Thermo Fisher Scientific
A104350B
1000g Each for $628.19
 
Description

Description

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.

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.
Specifications

Chemical Identifiers

52-90-4
121.154
XUJNEKJLAYXESH-REOHCLBHSA-N
5862
(2R)-2-amino-3-sulfanylpropanoic acid
C3H7NO2S
MFCD00064306
2r-2-amino-3-sulfanylpropanoic acid
CHEBI:17561
C(C(C(=O)O)N)S

Specifications

52-90-4
MFCD00064306
14,2781
Soluble in water,alcohol,acetic acid and aqueous ammonia. Insoluble in ether,acetone,ethyl acetate,benzene,carbon disulfide and carbon tetrachloride
C(C(C(=O)O)N)S
121.154
CHEBI:17561
≥98%
50g
L-Cysteine
C3H7NO2S
1721408
2r-2-amino-3-sulfanylpropanoic acid
XUJNEKJLAYXESH-REOHCLBHSA-N
(2R)-2-amino-3-sulfanylpropanoic acid
5862
121.16
∽220°C (decomposition)
Air Sensitive
Safety and Handling

Safety and Handling

GHS H Statement
H302
Harmful if swallowed.

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.

Warning

EINECSNumber : 200-158-2

RTECSNumber : HA1600000

TSCA : Yes

Recommended Storage : Ambient temperatures; Store under Nitrogen