N-(Azido-PEG2)-N-bis(PEG4-Boc) CAS 2112731-81-2

Purity 97%+In StockPharmaceutical Standards
CAS No.2112731-81-2
Molecular FormulaC36H70N4O14
Molecular Weight782.96 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

N-(Azido-PEG2)-N-bis(PEG4-Boc) CAS 2112731-81-2 chemical structure

Description

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

N-(Azido-PEG2)-N-bis(PEG4-Boc) (CAS 2112731-81-2) is a high-purity analytical reference standard with the molecular formula C36H70N4O14 and a molecular weight of 782.96 g/mol.

N-(Azido-PEG2)-N-bis(PEG4-Boc) (C36H70N4O14) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

Molecular FormulaC36H70N4O14
Molecular Weight782.96 g/mol
Purity97%+
StorageStore in a cool place (≤25°C), protect from light, keep sealed and dry
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)4.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1997
Nitrogen Atoms4

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