857891-82-8 Azido-PEG-amine (n=8) O-(2-Aminoethyl)-O inverted exclamation marka-(2-azidoethyl)heptaethylene glycol CAS 857891-82-8

Purity 97%+In StockPharmaceutical Standards
CAS No.857891-82-8
Molecular FormulaC18H38N4O8
Molecular Weight438.52 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

857891-82-8 Azido-PEG-amine (n=8) O-(2-Aminoethyl)-O inverted exclamation marka-(2-azidoethyl)heptaethylene glycol CAS 857891-82-8 chemical structure

Description

857891-82-8 Azido-PEG-amine (n=8) O-(2-Aminoethyl)-O inverted exclamation marka-(2-azidoethyl)heptaethylene glycol (CAS 857891-82-8) is a high-purity analytical reference standard with the molecular formula C18H38N4O8 and a molecular weight of 438.52 g/mol.

Structurally, 857891-82-8 Azido-PEG-amine (n=8) O-(2-Aminoethyl)-O inverted exclamation marka-(2-azidoethyl)heptaethylene glycol (C18H38N4O8) contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 2.0, corresponding to approximately 2 ring(s) or double-bond equivalent(s). With a molecular weight of 438.52 g/mol, it falls into the moderately-high-molecular-weight range. 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.

CATO manufactures 857891-82-8 Azido-PEG-amine (n=8) O-(2-Aminoethyl)-O inverted exclamation marka-(2-azidoethyl)heptaethylene glycol 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 FormulaC18H38N4O8
Molecular Weight438.52 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.)1987
Nitrogen Atoms4

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