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L-Cysteine, Merck Millipore

For biochemistry

Brand:  Merck Millipore 1028380100

Code : NEW

Additional Details : CAS Number : 52-90-4 Weight : 0.10000kg


Quantity 100 g

 View more versions of this product

Product Code. 10112920

Quantity Price
1 £69.02 / 100g
10 £58.86 / 100g
Estimated Shipment: 10-01-2022

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Description

Description

  • Assay (perchloric acid titration, calculated on dried substance): ≥ 99.0
  • Identity (IR-spectrum): passes test
  • Appearance: colorless to white, needle-shaped crystals
  • Appearance of solution (100 g/L, hydrochloric acid 2 mol/L): clear and colorless
  • Spec. rotation (α 20/D, 80 g/L, hydrochloric acid 1 mol/L, calc.on dried substance): +8.3 to +9.5
  • pH (25 g/L; CO2-free water): 4.5 - 5.5
  • Chloride (Cl): ≤ 0.04 %
  • Sulfate (SO4): ≤ 0.03 %
  • Heavy metals (as Pb): ≤ 0.001 %
  • As (Arsenic): ≤ 0.0001 %
  • Ca (Calcium): ≤ 0.001 %
  • Co (Cobalt): ≤ 0.0005 %
  • Fe (Iron): ≤ 0.0010 %
  • K (Potassium): ≤ 0.0005 %
  • Mg (Magnesium): ≤ 0.0005 %
  • Na (Sodium): ≤ 0.01 %
  • NH4 (Ammonium): ≤ 0.02 %
  • Zn (Zinc): ≤ 0.0005 %
  • Foreign amino acids: ≤ 0.5 %
  • Other ninhydrine positive substances: ≤ 0.1 %
  • Loss on drying (105 °C; 3 h): ≤ 0.5 %
Specifications

Chemical Identifiers

52-90-4
1 S/C3H7NO2S/c4-2(1-7)3(5)6/h2,7 H,1,4H2,(H,5,6)
C3H7NO2S
121.15
280 g/L
1890 mg/kg LD50, oral (Rat)
XUJNEKJLAYXESH-UHFFFAOYNA-N
MFCD00064306
4.5-5.5 (20°C, 100 g/L in H2O)
α-Amino-ß-mercapto propionic acid, α-Amino-ß-mercapto propionic acid, Cys, α-Amino-beta-mercapto propionic acid, L-Cysteine

Specifications

52-90-4
C3H7NO2S
α-Amino-ß-mercapto propionic acid, α-Amino-ß-mercapto propionic acid, Cys, α-Amino-beta-mercapto propionic acid, L-Cysteine
XUJNEKJLAYXESH-UHFFFAOYNA-N
2-amino-3-sulfanylpropanoic acid
280 g/L
100 g
C3H7NO2S
MFCD00064306
1 S/C3H7NO2S/c4-2(1-7)3(5)6/h2,7 H,1,4H2,(H,5,6)
NC(CS)C(O)=O
121.15
4.5-5.5 (20°C, 100 g/L in H2O)
1890 mg/kg LD50, oral (Rat)
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Safety and Handling

Safety and Handling

Product Identifier
  • L-cysteine for biochemistry

Signal Word
  • Warning

Hazard Category
  • Acute toxicity Category 4

Hazard Statement
  • H302-Harmful if swallowed.

Supplemental information
  • MIXTURE LIST-Contains : L-cysteine

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