Furan Impuirty 2 CAS 4741-45-1

Purity >90%In StockPharmacopoeial Impurity Standards
CAS No.4741-45-1
Molecular FormulaC5H4O2S
Molecular Weight128.15 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Furan Impuirty 2 CAS 4741-45-1 chemical structure

Description

Furan Impuirty 2 (CAS 4741-45-1) is a certified pharmaceutical impurity reference standard with the molecular formula C5H4O2S and a molecular weight of 128.15 g/mol.

Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, Furan Impuirty 2 is typically off-white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 128.15 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).

Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.

CATO manufactures Furan Impuirty 2 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

Molecular FormulaC5H4O2S
Molecular Weight128.15 g/mol
Purity>90%
StorageStore at 2-8°C
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure
Degree of Unsaturation (DBE)4.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1958
Sulfur Atoms1

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