(2s)-1-(9h-Fluoren-9-ylmethoxycarbonyl)-3,3-dimethyl-azetidine-2-carboxylicacid CAS 2231665-66-8
| CAS No. | 2231665-66-8 |
| Molecular Formula | C21H21NO4 |
| Molecular Weight | 351.40 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of (2s)-1-(9h-Fluoren-9-ylmethoxycarbonyl)-3,3-dimethyl-azetidine-2-carboxylicacid is closely related to a flavonoid core, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
(2s)-1-(9h-Fluoren-9-ylmethoxycarbonyl)-3,3-dimethyl-azetidine-2-carboxylicacid (CAS 2231665-66-8) is a high-purity analytical reference standard with the molecular formula C21H21NO4 and a molecular weight of 351.40 g/mol.
(2s)-1-(9h-Fluoren-9-ylmethoxycarbonyl)-3,3-dimethyl-azetidine-2-carboxylicacid (C21H21NO4) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C21H21NO4 |
| Molecular Weight | 351.40 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1998 |
| Nitrogen Atoms | 1 |
Recommended Standards
- (1R,2R)-3-Cyclopropyl-2-(4-methoxyphenyl)-4-oxo-2,3,4,5-tetrahydro-1H-3-benzazepine-1-carboxylic acid (CAS 2202285-19-4)
- (2S,4R)-1-(((9H-fluoren-9-yl)methoxy)carbonyl)-4-methylpyrrolidine-2-carboxylic acid (CAS 333777-34-7)
- (+)-(1S,3R)-N-Fmoc-β-homocycloleucine (CAS 220497-66-5)
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- 2-(2-Chlorophenyl)-1-oxo-1,2-dihydroisoquinoline-4-carboxylic acid (CAS 1429902-98-6)
- N1-(3-ethoxypropyl)-N1-(furan-2-ylmethyl)propane-1,3-diamine (CAS 1119450-31-5)
- 5-Bromofuro[2,3-d]pyrimidin-4-amine (CAS 1211525-35-7)
- N-(4-bromophenyl)thiazole-5-carboxamide (CAS 7112-94-9)
- Liraglutide Impurity 31 (CAS CATO-C4X-199231)
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