N-(Azido-PEG4)-N-bis(PEG4-t-butyl ester) CAS 2093152-79-3
| CAS No. | 2093152-79-3 |
| Molecular Formula | C40H78N4O16 |
| Molecular Weight | 871.06 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies N-(Azido-PEG4)-N-bis(PEG4-t-butyl ester) (CAS 2093152-79-3), a certified reference material (molecular formula C40H78N4O16, MW 871.06 g/mol) for analytical method development and quality control.
Based on its molecular formula C40H78N4O16, N-(Azido-PEG4)-N-bis(PEG4-t-butyl ester) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 871.06 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C40H78N4O16 |
| Molecular Weight | 871.06 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 | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
| Nitrogen Atoms | 4 |
Related N Standards
- 2-[N2-(4-Azido-2,3,5,6-tetrafluorobenzoyl)-N6-(6 -biotinamidocaproyl)-L-lysinyl]ethyl 2-Carboxyethyl Disulfide (CAS 1356841-73-0)
- N-(Azido-PEG3)-N-Fluorescein-PEG4-acid (CAS 2100306-72-5)
- 2-[N2-(4-Azido-2,3,5,6-tetrafluorobenzoyl)-N6-(6-biotinamidocaproyl)-L-lysinyl]ethyl Methanethiosulfonate (CAS 1356383-18-0)
- N-(Azido-PEG3)-N-bis(PEG4-Boc) (CAS 2353409-58-0)
- Azido-PEG20-alcohol (CAS 1637297-21-2)
- N-(Azido-PEG3)-N-Fluorescein-PEG3-acid (CAS 2100306-50-9)
- N-(Azido-PEG4)-N-bis (PEG4-NHS ester)(97%) (CAS 2182601-77-8)
- N-(Azido-PEG2)-N-bis(PEG4-Boc) (CAS 2112731-81-2)
Recommended Standards
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- Pheophytin a (CAS 603-17-8)
- (1R,4S)-2-azabicyclo[2.2.1]heptan-3-one (CAS 134003-02-4)
- 2-Amino-1-(4-methoxy-3-sulfonamidophenyl)-2-propanone hydrochloride (CAS 1076198-82-7)
- 3-Chloro-4-ethylphenol (CAS 1243290-06-3)
- Dihydrocytochalasin B (CAS 39156-67-7)
- Bmt-145027 (CAS 2018282-44-3)
- 7-Octynoic Acid (CAS 10297-09-3)
- Niraparib Impurity 39 (CAS CATO-C4X-232939)
- (5R,6R)-5-Fluoro-6-isopropyldihydropyrimidine-2,4(1H,3H)-dione (CAS 154121-09-2)
- 4-(((2-Ethoxyphenyl)amino)methyl)-6-hydroxy-7-phenyl-2H-chromen-2-one (CAS 859142-49-7)
- Semaglutide Impurity 6 (CAS 62-57-7)
Why CATO?
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