(R)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-2-(4-hydroxyphenyl)acetic acid CAS 178119-93-2
| CAS No. | 178119-93-2 |
| Molecular Formula | C23H19NO5 |
| Molecular Weight | 389.40 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 (R)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-2-(4-hydroxyphenyl)acetic acid (CAS 178119-93-2), a certified reference material (molecular formula C23H19NO5, MW 389.40 g/mol) for analytical method development and quality control.
(R)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-2-(4-hydroxyphenyl)acetic acid (C23H19NO5) 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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C23H19NO5 |
| Molecular Weight | 389.40 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) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2007 |
| Nitrogen Atoms | 1 |
Recommended Standards
- 2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3-(pyrimidin-4-yl)propanoic acid (CAS 1691032-13-9)
- (S)-2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-2-(4-hydroxyphenyl)acetic acid (CAS 182883-41-6)
- 2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3-(pyrimidin-2-yl)propanoic acid (CAS 1690821-45-4)
- PF-06700841, >98% (HPLC) (CAS 1883299-62-4)
- N-[3-Chloro-5-(trifluoromethyl)-2-pyridinyl]-4-fluoro-N-methylbenzenesulfonohydrazide (CAS 338748-65-5)
- Ethyl 5-bromo-1-(oxetan-3-yl)-1H-pyrazole-4-carboxylate (CAS 2640485-85-2)
- 3-Chloro-5h-indeno[1,2-c]pyridazine (CAS 69581-17-5)
- 6-Bromo-3-methylpicolinonitrile (CAS 1379335-87-1)
- 2-Amino-7-bromo-3,4-dihydroisoquinolin-1(2H)-one (CAS 2068151-21-1)
- 4-Amino-1-methylpyrazole-3-carboxylic Acid (CAS 1006334-34-4)
- 5-Ethoxy-2,3-difluorobenzoic acid (CAS 875664-49-6)
- 1-(Oxetan-3-yl)-1h-1,2,3-triazole-4-carbaldehyde (CAS 1707563-96-9)
- 1-(2,4-Difluorophenyl)-2-(propylthio)ethan-1-one (CAS 333744-26-6)
- Fibronectin Adhesion-Promoting Peptide (CAS 125720-21-0)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com