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52-90-4 - L-Cysteine, 98+% - L-2-Amino-3-mercaptopropionic acid - H-Cys-OH - A10435 - Alfa Aesar

A10435 L-Cysteine, 98+%

Número CAS
52-90-4
Nombre Alternativo
L-2-Amino-3-mercaptopropionic acid
H-Cys-OH

Tamaño Precio ($) Cantidad Disponibilidad
50g 25,60
250g 84,96
1000g 296,10
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L-Cysteine, 98+%

MDL
MFCD00064306
EINECS
200-158-2

Propiedades químicas

Fórmula
C3H7NO2S
Peso molecular
121.16
Punto de fusión
ca 220° dec.
Sensibilidad
Air Sensitive
Solubilidad
Soluble in water, alcohol, acetic acid and aqueous ammonia. Insoluble in ether, acetone, ethyl acetate, benzene, carbon disulfide and carbon tetrachloride

Aplicaciones

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.

Notas

Air sensitive. Incompatible with strong oxidizing agents.

Referencias documentales

Mu, L.; Gao, Y.; Hu, X. l-Cysteine: A biocompatible, breathable and beneficial coating for graphene oxide. Biomaterials 2015, 52, 301-311.

Yin, K.; Li, B.; Wang, X.; Zhang, W.; Chen, L. Ultrasensitive colorimetric detection of Cu 2+ ion based on catalytic oxidation of l-cysteine. Biosens. Bioelectron. 2015, 64, 81-87.

Indicaciones de peligro y de precaución del GHS

Indicaciones de peligro (UE): H302

Harmful if swallowed.

Indicaciones de precaución: 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.

Otras referencias

Merck
14,2781
Beilstein
1721408
Código de tarifa arancelaria unificado
2930.90
TSCA
Yes
RTECS
HA1600000

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