Sigma-Aldrich L-Cystine For Biochemistry 1 kg

Name: Sigma-Aldrich L-Cystine For Biochemistry 1 kg
SKU: SIAL-1028371000
Price: 904.18 USD

List Price $904.18 Your Price $904.18

Sigma-Aldrich L-Cystine For Biochemistry 1 kg - SIAL (Additional S&H or Hazmat Fees May Apply)

NETA PART: SIAL-1028371000

MFG.PART: 1028371000

UNSPSC: 12352200

Manufacturer: Sigma-Aldrich

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Description

Quality Level

100

form

solid

mp

261-262 °C (decomposition)

solubility

insoluble 0.19 g/L

density

1.677 g/cm³ at 20 °C

bulk density

300 kg/M³

storage temp.

2-30°C

SMILES string

S(SC[C@H]([N+H3])C(=O)[O-])C[C@H]([N+H3])C(=O)[O-]

InChI

1S/C6H12N2O4S2/c7-3(5(9)10)1-13-14-2-4(8)6(11)12/h3-4H,1-2,7-8H2,(H,9,10)(H,11,12)/t3-,4-/m0/s1

Inchi Key

LEVWYRKDKASIDU-IMJSIDKUSA-N

Analysis Note

Assay (bromatometric, calculated on dried substance): ≥ 99.0 %
Identity (IR-spectrum): passes test
Appearance: white to almost white, fine-crystalline powder
Appearance of solution (0.2 mol/L, hydrochloric acid 1 mol/L): clear and colorless
Spec. rotation (α 20/D, 50 g/L, hydrochloric acid 1 mol/L, calc. on dried substance): -220.0 to - 225.0
Chloride (Cl): ≤ 0.02 %
Sulfate (SO₄): ≤ 0.05 %
Heavy metals (as Pb): ≤ 0.001 %
As (Arsenic): ≤ 0.0005 %
Ca (Calcium): ≤ 0.001 %
Co (Cobalt): ≤ 0.0005 %
Fe (Iron): ≤ 0.0005 %
K (Potassium): ≤ 0.0005 %
mg (Magnesium): ≤ 0.0005 %
Na (Sodium): ≤ 0.005 %
Zn (Zinc): ≤ 0.0005 %
NH₄ (Ammonium): ≤ 0.01 %
Foreign amino acids: ≤ 0.3 %
Other ninhydrine positive substances: ≤ 0.3 %
Loss on drying (105 °C; 3 H): ≤ 0.3 %

Storage Class

11 - Combustible Solids

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c