3'-Galactosyllactose CAS 32694-82-9

Purity 97%+In StockPharmaceutical Standards
CAS No.32694-82-9
Molecular FormulaC18H32O16
Molecular Weight504.44 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3'-Galactosyllactose CAS 32694-82-9 chemical structure

Description

3'-Galactosyllactose (CAS 32694-82-9) is a high-purity analytical reference standard with the molecular formula C18H32O16 and a molecular weight of 504.44 g/mol.

The molecular framework of 3'-Galactosyllactose (C18H32O16) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).

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), 3'-Galactosyllactose 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 FormulaC18H32O16
Molecular Weight504.44 g/mol
Purity97%+
StorageStore at room temperature, keep sealed and dry
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure
Degree of Unsaturation (DBE)3.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1966

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