Ammonium tetrathiotungstate CAS 13862-78-7

Purity 97%+In StockPharmaceutical Standards
CAS No.13862-78-7
Molecular FormulaH2S4W
Molecular WeightN/A
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Ammonium tetrathiotungstate CAS 13862-78-7 chemical structure

Description

The occurrence of Ammonium tetrathiotungstate is closely related to sulfur-containing functionality in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

Ammonium tetrathiotungstate (CAS 13862-78-7) is a high-purity analytical reference standard with the molecular formula H2S4WH3N and a molecular weight of 331.13 g/mol.

The molecular framework of Ammonium tetrathiotungstate (H2S4WH3N) is characterized by sulfur-containing functionality. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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

As a certified reference material (CRM), Ammonium tetrathiotungstate 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 FormulaH2S4W 2*H3N
Molecular Weight331.13 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Freely soluble in water
StabilityLight-sensitive; avoid direct strong light
CAS Registry Year (est.)1960
Nitrogen Atoms1
Sulfur Atoms4

Recommended Standards

Why CATO?