Tobramycin Impurity 28 CAS CATO-C4X-220028

Purity ≥95%In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-220028
Molecular FormulaC6H13NO5
Molecular Weight179.17 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Tobramycin Impurity 28 CAS CATO-C4X-220028 chemical structure

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Tobramycin Impurity 28.

Tobramycin Impurity 28 (CAS CATO-C4X-220028) is a certified pharmaceutical impurity reference standard with the molecular formula C6H13NO5 and a molecular weight of 179.17 g/mol.

Owing to a carbohydrate-derived structure, an amide group, Tobramycin Impurity 28 is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 179.17 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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), Tobramycin Impurity 28 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 FormulaC6H13NO5
Molecular Weight179.17 g/mol
Purity≥95%
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO, water
StabilityLight-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)1.0
Nitrogen Atoms1

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