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  5. Thermo Scientific Chemicals L-Cysteine, 99+%

Thermo Scientific Chemicals L-Cysteine, 99+%

Codice prodotto. 10499470
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Quantità:
5 g
25 g
100 g
500 g
Imballaggio:
Glass Bottle
Plastic Bottle
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Descrizione

L-Cysteine, CAS # 52-90-4, is an essential sulfur-containing amino acid related to cystine. It plays an important role in protein synthesis. It is a precursor to the glutathione antioxidant system and iron-sulfur clusters.

This Thermo Scientific Chemicals brand product was originally part of the Acros Organics product portfolio. Some documentation and label information may refer to the legacy brand. The original Acros Organics product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

General Description

  • L-Cysteine is an essential amino acid and is one of the building blocks required for the synthesis of proteins
  • This compound participates in the glutathione antioxidant system and iron-sulfur clusters

Applications

  • It plays a role in the production of flavors such as meat flavor obtained by reacting with sugars
  • This compound is also applied to the cleavage of disulfide bonds in keratin, the main protein in nails, skin, and hair
  • In chemical research, it is used as a crucial raw material in the manufacture of N-acetyl-L-cysteine, S-carboxymethyl-L-cysteine, and L-cysteine base
  • L-Cysteine is a component of the antioxidant glutathione and has been shown to be involved in the metabolism of essential biochemicals such as coenzyme A, heparin, and biotin
  • In vitro studies demonstrated that this compound can neutralize the activity of acetaminophen. In addition, due to its antioxidant activity this compound can protect the nervous system.
  • This compound can also bind to several metal cofactors in enzymes
TRUSTED_SUSTAINABILITY

Identificatori chimici

CAS 52-90-4
Formula molecolare C3H7NO2S
Molecular Weight (g/mol) 121.154
Numero MDL MFCD00064306
InChI Key XUJNEKJLAYXESH-REOHCLBHSA-N
Sinonimo l-cysteine, cysteine, cystein, half-cystine, r-cysteine, thioserine, r-2-amino-3-mercaptopropanoic acid, l-+-cysteine, l-cystein, 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

Specifica

Materiale o nome chimico L-Cysteine
Ammonio 1000ppm max.
pH 4.5 to 6 (2.5% aq. soln.)
Colore White
Cloro (Cl) 400ppm max.
Metalli pesanti (come Pb) 10ppm max.
Spettro a infrarossi Authentic
Intervallo percentuale saggio 98+%
Perdita all'essiccatura 0.5% max. (105°C, 3 hrs)
Imballaggio Plastic Bottle
Formula lineare HSCH2CH(NH2)CO2H
Rotazione specifica +8° to +9.5° (20°C, 589nm) (c=5, 2N HCl)
Solfato 300ppm max.
Cenere solfata 0.1% max.
Quantità 100 g
Peso formulazione 121.15
Percent Purity ≥99.0% (on dried substance)
Forma fisica Crystalline Powder or Crystals
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Sicurezza e movimentazione

Identificativo prodotto
  • L-Cysteine

RUO – Research Use Only

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