Sodium thiosulfate pentahydrate CAS 10102-17-7

Purity 97%+In StockPharmaceutical Standards
CAS No.10102-17-7
Molecular FormulaO3S2
Molecular WeightN/A
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Sodium thiosulfate pentahydrate CAS 10102-17-7 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 153.12 g/mol gives Sodium thiosulfate pentahydrate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Sodium thiosulfate pentahydrate (CAS 10102-17-7) is a high-purity analytical reference standard with the molecular formula O3S2NaH2O and a molecular weight of 153.12 g/mol.

Based on its molecular formula O3S2NaH2O, Sodium thiosulfate pentahydrate contains a sulfone group; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 153.12 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 FormulaO3S2 2*Na 5*H2O
Molecular Weight153.12 g/mol
Purity97%+
StorageStore at 2-8°C, keep sealed and dry
Solubility (reference)Freely soluble in water
StabilityHygroscopic; reseal immediately after opening
CAS Registry Year (est.)1959
Sulfur Atoms2

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