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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+%

Codice CAS
52-90-4
Sinonimi
L-2-Amino-3-mercaptopropionic acid
H-Cys-OH

Dimensioni Prezzo ($) Quantità Disponibilità
50g 25,60
250g 97,10
1000g 332,00
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L-Cysteine, 98+%

MDL
MFCD00064306
EINECS
200-158-2

Proprietà chimiche

Formula
C3H7NO2S
Peso formula
121.16
Punto di fusione
ca 220° dec.
Sensibilità
Air Sensitive
Solubilità
Soluble in water, alcohol, acetic acid and aqueous ammonia. Insoluble in ether, acetone, ethyl acetate, benzene, carbon disulfide and carbon tetrachloride

Applicazioni

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.

Note

Air sensitive. Incompatible with strong oxidizing agents.

Letteratura

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.

Rischio GHS e dichiarazioni precauzionali

Dichiarazioni di rischio (UE): H302

Harmful if swallowed.

Dichiarazioni precauzionali: P264-P270-P301+P312a-P330-P501a

Wash thoroughly after handling. Do not eat, drink or smoke when using this product. IF SWALLOWED: Call a POISON CENTER/doctor if you feel unwell. Rinse mouth. Dispose of contents/container in accordance with local/regional/national/international regulations.

Altri riferimenti

Merck
14,2781
Beilstein
1721408
Codice tariffe armonizzato
2930.90
TSCA
Yes
RTECS
HA1600000

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