Arotinolol Impurity 9 CAS 4066-41-5

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.4066-41-5
Molecular FormulaC7H6O3S
Molecular Weight170.19 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Arotinolol Impurity 9 CAS 4066-41-5 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 170.19 g/mol gives Arotinolol Impurity 9 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Arotinolol Impurity 9 (CAS 4066-41-5) is a certified pharmaceutical impurity reference standard with the molecular formula C7H6O3S and a molecular weight of 170.19 g/mol.

Based on its molecular formula C7H6O3S, Arotinolol Impurity 9 contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 170.19 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.

As a certified reference material (CRM), Arotinolol Impurity 9 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC7H6O3S
Molecular Weight170.19 g/mol
Purity>95%
StorageStore at 2-8°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)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1958
Sulfur Atoms1

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