Antimonyl tartrate CAS 12544-35-3

Purity 97%+In StockPharmaceutical Standards
CAS No.12544-35-3
Molecular Formula2*C4H2O6
Molecular WeightN/A
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Antimonyl tartrate CAS 12544-35-3 chemical structure

Description

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.

Antimonyl tartrate (CAS 12544-35-3) is a high-purity analytical reference standard with the molecular formula C4H2O6Sb and a molecular weight of 267.81 g/mol.

Owing to a carbohydrate-derived structure, Antimonyl tartrate is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 267.81 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

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 Formula2*C4H2O6 2*Sb
Molecular Weight267.81 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity97%+
StorageStore in a cool place (≤25°C), keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO, water
StabilityMay oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)4.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1960

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