(1R,4S)-(+)-4-(Fmoc-amino)-2-cyclopentene-1-carboxylic acid CAS 220497-65-4
| CAS No. | 220497-65-4 |
| Molecular Formula | C21H19NO4 |
| Molecular Weight | 349.38 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 (1R,4S)-(+)-4-(Fmoc-amino)-2-cyclopentene-1-carboxylic acid.
(1R,4S)-(+)-4-(Fmoc-amino)-2-cyclopentene-1-carboxylic acid (CAS 220497-65-4) is a high-purity analytical reference standard with the molecular formula C21H19NO4 and a molecular weight of 349.38 g/mol.
Based on its molecular formula C21H19NO4, (1R,4S)-(+)-4-(Fmoc-amino)-2-cyclopentene-1-carboxylic acid 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 349.38 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.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), (1R,4S)-(+)-4-(Fmoc-amino)-2-cyclopentene-1-carboxylic acid 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 | C21H19NO4 |
| Molecular Weight | 349.38 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.) | 2019 |
| Nitrogen Atoms | 1 |
Recommended Standards
- (1R,3S,5R)-2-[(9h-fluoren-9-ylmethoxy)carbonyl]-2-azabicyclo[3.1.0]hexane-3-carboxylic acid (CAS 1983904-18-2)
- (1S,2R,4S)-4-(((Benzyloxy)Carbonyl)Amino)Cyclohexane-1,2-Diyl Diacetate (CAS 2247380-99-8)
- (1R,2S,4S)-4-(((Benzyloxy)Carbonyl)Amino)Cyclohexane-1,2-Diyl Diacetate (CAS 2247380-96-5)
- (1S,2S,5R)-3-(((9H-Fluoren-9-yl)methoxy)carbonyl)-3-azabicyclo[3.1.0]hexane-2-carboxylic acid (CAS 854113-43-2)
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