Erbium(III) oxalate hydrate,99.99% CAS 58176-72-0

Purity 97%+In StockPharmaceutical Standards
CAS No.58176-72-0
Molecular FormulaEr
Molecular WeightN/A
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Erbium(III) oxalate hydrate,99.99% CAS 58176-72-0 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 275.31 g/mol gives Erbium(III) oxalate hydrate,99.99% distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Erbium(III) oxalate hydrate,99.99% (CAS 58176-72-0), molecular formula ErC2H2O4H2O and molecular weight 275.31 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, Erbium(III) oxalate hydrate,99.99% (ErC2H2O4H2O) contains a carboxylic acid group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 1.0, corresponding to approximately 1 ring(s) or double-bond equivalent(s). With a molecular weight of 275.31 g/mol, it falls into the medium-molecular-weight range.

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 FormulaEr C2H2O4 H2O
Molecular Weight275.31 g/mol
Purity97%+
StorageStore in a cool place (≤25°C), keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO, water
StabilityHygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)1.0
CAS Registry Year (est.)1973

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Why CATO?