(S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-2-(4-ethylphenyl)acetic acid CAS 1260618-75-4
| CAS No. | 1260618-75-4 |
| Molecular Formula | C25H23NO4 |
| Molecular Weight | 401.45 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), (S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-2-(4-ethylphenyl)acetic 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.
CATO supplies (S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-2-(4-ethylphenyl)acetic acid (CAS 1260618-75-4), a certified reference material (molecular formula C25H23NO4, MW 401.45 g/mol) for analytical method development and quality control.
The molecular framework of (S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-2-(4-ethylphenyl)acetic acid (C25H23NO4) is characterized by a flavonoid core, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.
Physical & Chemical Properties
| Molecular Formula | C25H23NO4 |
| Molecular Weight | 401.45 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) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 1 |
Recommended Standards
- (1-(4-Fluorobenzyl)-4,4-dioxido-1H-benzo[e][1,3,4]thiadiazin-3-yl)(piperidin-1-yl)methanone (CAS 1251703-55-5)
- (R)-3-(9H-Fluoren-9-ylmethoxycarbonylamino)-2-p-tolyl-propionic acid (CAS 1280787-01-0)
- Ethyl 1-(7-(2-fluorophenyl)-4-hydroxythieno[3,2-d]pyrimidin-2-yl)piperidine-4-carboxylate (CAS 1243106-58-2)
- (S)-3-(9H-Fluoren-9-ylmethoxycarbonylamino)-2-p-tolyl-propionic acid (CAS 1280787-15-6)
- 2-Amino-5-ethylphenol hydrochloride (CAS 149861-22-3)
- Estetrol monohydrate (CAS 2055649-81-3)
- (5-Chloro-2-(difluoromethyl)phenyl)(pyridin-4-yl)methanone (CAS 1261754-35-1)
- 4-(4-Bromophenyl)-3-((naphthalen-1-ylmethyl)thio)-5-phenyl-4H-1,2,4-triazole (CAS 763139-03-3)
- 4-Chloro-3-(3-phenylureido)benzoic acid (CAS 182958-04-9)
- 6-(Trifluoromethyl)imidazo[2,1-b]thiazole-5-carboxamide (CAS 1823913-22-9)
- 6-Chloro-2-(2,4-difluorophenoxy)-4-methylquinoline (CAS 338749-91-0)
- Tricirbine Phosphate (CAS 61966-08-3)
- 2-(3-Chlorobenzoyl)pyridine (CAS 73742-07-1)
- Semaglutide (CAS CATO-C4X-2226105)
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