Tos-PEG5-Boc CAS 581065-94-3

Purity 97%+In StockPharmaceutical Standards
CAS No.581065-94-3
Molecular FormulaC22H36O9S
Molecular Weight476.58 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Tos-PEG5-Boc CAS 581065-94-3 chemical structure

Description

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.

CATO supplies Tos-PEG5-Boc (CAS 581065-94-3), a certified reference material (molecular formula C22H36O9S, MW 476.58 g/mol) for analytical method development and quality control.

Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, Tos-PEG5-Boc is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 476.58 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).

As a certified reference material (CRM), Tos-PEG5-Boc 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 FormulaC22H36O9S
Molecular Weight476.58 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)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1984
Sulfur Atoms1

Recommended Standards

Why CATO?