Benzyloxy carbonyl-PEG3-NHS ester CAS 2100306-68-9
| CAS No. | 2100306-68-9 |
| Molecular Formula | C21H27NO9 |
| Molecular Weight | 437.44 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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 supplies Benzyloxy carbonyl-PEG3-NHS ester (CAS 2100306-68-9), a certified reference material (molecular formula C21H27NO9, MW 437.44 g/mol) for analytical method development and quality control.
Owing to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, Benzyloxy carbonyl-PEG3-NHS ester is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 437.44 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.
As a certified reference material (CRM), Benzyloxy carbonyl-PEG3-NHS ester meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C21H27NO9 |
| Molecular Weight | 437.44 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
| Nitrogen Atoms | 1 |
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Recommended Standards
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- Fmoc-R-3-amino-4-(3,4-difluorophenyl)-butyric acid (CAS 269396-60-3)
- 2-Chloro-3-fluoro-4-(methylthio)pyridine (CAS 1826110-14-8)
- 2-Bromo-N-(5-methylpyridin-2-yl)acetamide (CAS 349124-62-5)
- 3-(2,4-Difluorophenyl)-3-oxopropanenitrile (CAS 71682-95-6)
- 1-(2,6-Dimethylpiperazin-1-yl)prop-2-en-1-one (CAS 1341695-02-0)
- 1-(Tert-butyl) 2-methyl (2S,3R)-3-aminopyrrolidine-1,2-dicarboxylate hydrochloride (CAS 1881275-89-3)
- 2-((1H-Indol-3-yl)methyl)-8-fluoro-3-hydroxyquinoline-4-carboxylic acid (CAS 924634-66-2)
- 1-(6-Methyl-1,2,3,4-tetrahydroquinolin-5-yl)thiourea (CAS 691891-04-0)
- 3-Methyl-2,6-dinitrobenzoic acid (CAS 3478-09-9)
- 2-(4-(((1-Methyl-1H-pyrazol-3-yl)methyl)amino)-1H-pyrazol-1-yl)ethan-1-ol hydrochloride (CAS 1856096-34-8)
- Semaglutide impurity 36 (CAS CATO-C4X-222636)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com