270733

Water

suitable for HPLC

• Synonym(s): Aqua, Dihydrogen oxide
• Linear Formula: H₂O
• CAS Number: 7732-18-5
• Molecular Weight: 18.02
• Beilstein/REAXYS Number: 2050024
• EC Number: 231-791-2
• MDL number: MFCD00011332
• UNSPSC Code: 12190000
• PubChem Substance ID: 329752968
• NACRES: NA.21

Properties

• vapor density: <1 (vs air)
• Quality Level: 200
• vapor pressure: 3 mmHg
• form: liquid
• technique(s): HPLC: suitable
• evapn. residue: <0.0003%
• refractive index: n20/D 1.34 (lit.)
• pH: 6.0-8.0 (25 °C)
• bp: 100 °C (lit.)
• mp: 0 °C (lit.)
• density: 1.000 g/mL at 3.98 °C (lit.)
• λ: H₂O reference
• UV absorption: λ: 205 nm A_max: 0.01; λ: 210 nm A_max: 0.01; λ: 250-400 nm A_max: 0.005
• SMILES string: O
• InChI: 1S/H2O/h1H2
• InChI key: XLYOFNOQVPJJNP-UHFFFAOYSA-N

Description

General description

Water suitable for HPLC is commonly used as a solvent for isocratic elution in both cation and anion chromatography. Additionally, it is used as a component to prepare standard stock solutions, and for evaporation under a nitrogen stream in a water bath to concentrate the sample before LC-MS-MS analysis.

Application

Water is used as a:

• Solvent to prepare buffers during the cell lysis process.
• Component of the mobile phase during the HPLC–UV–diode-array detection for the separation and detection of the analytes.

Preparation Note

Product filtered through a 0.2 μm filter

Other Notes

Important notice
The article number 270733-6X1L will be discontinued. Please order the single bottle 270733-1L which is physically identical with the same exact specifications.

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Safety Information

• Storage Class: 12 - Non Combustible Liquids
• wgk_germany: nwg
• flash_point_f: Not applicable
• flash_point_c: Not applicable