Water CAS 7732-18-5

Purity >95%In StockPharmaceutical Standards
CAS No.7732-18-5
Molecular FormulaH2O
Molecular Weight18.02 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Water CAS 7732-18-5 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 18.02 g/mol gives Water distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Water (CAS 7732-18-5), a certified reference material (molecular formula H2O, MW 18.02 g/mol) for analytical method development and quality control.

Based on its molecular formula H2O, Water contains an inorganic composition; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 18.02 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry.

This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

Molecular FormulaH2O
Molecular Weight18.02 g/mol
Purity>95%
StorageStore at 2-8°C
Solubility (reference)Freely soluble in water
StabilityStable under recommended storage conditions
CAS Registry Year (est.)1959

Recommended Standards

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