Fmoc-N-Me-Abu(4-ethynyl)-OH CAS 2642725-92-4
| CAS No. | 2642725-92-4 |
| Molecular Formula | C22H21NO4 |
| Molecular Weight | 363.41 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Fmoc-N-Me-Abu(4-ethynyl)-OH.
CATO supplies Fmoc-N-Me-Abu(4-ethynyl)-OH (CAS 2642725-92-4), a certified reference material (molecular formula C22H21NO4, MW 363.41 g/mol) for analytical method development and quality control.
Based on its molecular formula C22H21NO4, Fmoc-N-Me-Abu(4-ethynyl)-OH contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 363.41 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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 | C22H21NO4 |
| Molecular Weight | 363.41 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2002 |
| Nitrogen Atoms | 1 |
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Recommended Standards
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- (1-(3-Ethylphenyl)-1h-1,2,3-triazol-4-yl)methanol (CAS 1249466-95-2)
- Ethyl 1-Methyl-4-piperidylacetate (CAS 67686-05-9)
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