Erbium(III) perchlorate, 50% aqueous solution (99.9%-Er) (REO) CAS 61565-07-9

Purity 97%+In StockPharmaceutical Standards
CAS No.61565-07-9
Molecular FormulaEr
Molecular WeightN/A
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Erbium(III) perchlorate, 50% aqueous solution (99.9%-Er) (REO) CAS 61565-07-9 chemical structure

Description

Based on its molecular formula ErClO4, Erbium(III) perchlorate, 50% aqueous solution (99.9%-Er) (REO) contains chlorine substitution; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 266.71 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

CATO supplies Erbium(III) perchlorate, 50% aqueous solution (99.9%-Er) (REO) (CAS 61565-07-9), a certified reference material (molecular formula ErClO4, MW 266.71 g/mol) for analytical method development and quality control.

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 FormulaEr 3*ClO4
Molecular Weight266.71 g/mol
Purity97%+
StorageStore in a cool place (≤25°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.)1974
Halogen ContentCl-containing

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