m-PEG16-Br CAS 1238189-11-1

Purity 97%+In StockPharmaceutical Standards
CAS No.1238189-11-1
Molecular FormulaC33H67BrO16
Molecular Weight799.78 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

m-PEG16-Br CAS 1238189-11-1 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 799.78 g/mol gives m-PEG16-Br distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

m-PEG16-Br (CAS 1238189-11-1), molecular formula C33H67BrO16 and molecular weight 799.78 g/mol, is a CATO reference standard with documented purity and traceability.

m-PEG16-Br (C33H67BrO16) contains a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution. Halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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 manufactures m-PEG16-Br under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

Molecular FormulaC33H67BrO16
Molecular Weight799.78 g/mol
Purity97%+
StorageStore at room temperature, keep sealed and dry
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityContains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)0.0
CAS Registry Year (est.)1990
Halogen ContentBr-containing

Recommended Standards

Why CATO?