Chlorosulfonic Acid CAS 7790-94-5

Purity 97%+In StockPharmaceutical Standards
CAS No.7790-94-5
Molecular FormulaHClO3S
Molecular Weight116.52 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Chlorosulfonic Acid CAS 7790-94-5 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 116.52 g/mol gives Chlorosulfonic Acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Chlorosulfonic Acid (CAS 7790-94-5) is a high-purity analytical reference standard with the molecular formula HClO3S and a molecular weight of 116.52 g/mol.

Owing to a sulfone group, chlorine substitution, Chlorosulfonic Acid is typically white to off-white liquid. Its solid-state physicochemical attributes — including a molecular weight of 116.52 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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.

As a certified reference material (CRM), Chlorosulfonic Acid meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaHClO3S
Molecular Weight116.52 g/mol
Purity97%+
StorageStore at 2-8°C, keep sealed and dry, keep tightly closed to prevent evaporation
Solubility (reference)Freely soluble in water
StabilityHygroscopic; reseal immediately after opening
CAS Registry Year (est.)1959
Halogen ContentCl-containing
Sulfur Atoms1

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