Sulfur Dioxide CAS 7446-09-5

Purity 100mg/L in FormaldehydeIn StockPharmaceutical Standards
CAS No.7446-09-5
Molecular FormulaO2S
Molecular Weight64.06 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Sulfur Dioxide CAS 7446-09-5 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 64.06 g/mol gives Sulfur Dioxide distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Sulfur Dioxide (CAS 7446-09-5), molecular formula O2S and molecular weight 64.06 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula O2S, Sulfur Dioxide contains a sulfone group; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 64.06 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry.

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

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 FormulaO2S
Molecular Weight64.06 g/mol
Purity100mg/L in Formaldehyde
StorageStore at 2-8°C
Solubility (reference)Freely soluble in water
StabilityStable under recommended storage conditions
CAS Registry Year (est.)1959
Sulfur Atoms1

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Why CATO?