Tobramycin Sulfate CAS 79645-27-5

Purity 97%+In StockPharmaceutical Standards
CAS No.79645-27-5
Molecular FormulaC18H37N5O9
Molecular WeightN/A
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Tobramycin Sulfate CAS 79645-27-5 chemical structure

Description

Tobramycin Sulfate (CAS 79645-27-5), molecular formula C18H37N5O9H2O4S and molecular weight 565.59 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of Tobramycin Sulfate (C18H37N5O9H2O4S) is characterized by an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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.

As a certified reference material (CRM), Tobramycin Sulfate 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 FormulaC18H37N5O9 H2O4S
Molecular Weight565.59 g/mol
Purity97%+
StorageStore in a cool place (≤25°C), protect from light, keep sealed and dry
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityLight-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)2.0
CAS Registry Year (est.)1979
Nitrogen Atoms5
Sulfur Atoms1

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