Oxotungsten(VI) chloride CAS 13520-78-0

Purity 97%+In StockPharmaceutical Standards
CAS No.13520-78-0
Molecular FormulaCl4OW
Molecular Weight341.65 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Oxotungsten(VI) chloride CAS 13520-78-0 chemical structure

Description

The occurrence of Oxotungsten(VI) chloride is closely related to chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

Oxotungsten(VI) chloride (CAS 13520-78-0) is a high-purity analytical reference standard with the molecular formula Cl4OW and a molecular weight of 341.65 g/mol.

Oxotungsten(VI) chloride (Cl4OW) contains chlorine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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 FormulaCl4OW
Molecular Weight341.65 g/mol
Purity97%+
StorageStore at room temperature
Solubility (reference)Freely soluble in water
StabilityStable under recommended storage conditions
CAS Registry Year (est.)1960
Halogen ContentCl-containing

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