2-(Azido-PEG2-amido)-1,3-bis-(tert-butyldimethylsilanoxy)propane CAS 1398044-56-8
| CAS No. | 1398044-56-8 |
| Molecular Formula | C22H48N4O5Si2 |
| Molecular Weight | 504.81 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 2-(Azido-PEG2-amido)-1,3-bis-(tert-butyldimethylsilanoxy)propane (CAS 1398044-56-8), a certified reference material (molecular formula C22H48N4O5Si2, MW 504.81 g/mol) for analytical method development and quality control.
Owing to an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, 2-(Azido-PEG2-amido)-1,3-bis-(tert-butyldimethylsilanoxy)propane is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 504.81 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
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 Formula | C22H48N4O5Si2 |
| Molecular Weight | 504.81 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 1.0 |
| CAS Registry Year (est.) | 1991 |
| Nitrogen Atoms | 4 |
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Recommended Standards
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