(S)-4-((9H-Fluoren-9-yl)methoxy)-3-((tert-butoxycarbonyl)amino)-4-oxobutanoic acid CAS 129046-87-3
| CAS No. | 129046-87-3 |
| Molecular Formula | C23H25NO6 |
| Molecular Weight | 411.45 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.
(S)-4-((9H-Fluoren-9-yl)methoxy)-3-((tert-butoxycarbonyl)amino)-4-oxobutanoic acid (CAS 129046-87-3), molecular formula C23H25NO6 and molecular weight 411.45 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C23H25NO6, (S)-4-((9H-Fluoren-9-yl)methoxy)-3-((tert-butoxycarbonyl)amino)-4-oxobutanoic 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 411.45 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.
As a certified reference material (CRM), (S)-4-((9H-Fluoren-9-yl)methoxy)-3-((tert-butoxycarbonyl)amino)-4-oxobutanoic 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 | C23H25NO6 |
| Molecular Weight | 411.45 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1993 |
| Nitrogen Atoms | 1 |
Recommended Standards
- 2-AMINO-1-[2-(4-FLUOROPHENYL)-3-[(4-FLUOROPHENYL)AMINO]-5,6-DIHYDRO-8,8-DIMETHYLIMIDAZO[1,2-A]PYRAZIN-7(8H)-YL]ETHANONE (CAS 1261113-96-5)
- (S)-Ethyl 2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-3-(2H-tetrazol-5-yl)propanoate (CAS 1416445-14-1)
- (S)-2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-5-(1,3-dioxolan-2-yl)pentanoic acid (CAS 1234692-73-9)
- Fmoc-n-(tert-butyloxycarbonylmethyl)-glycine (CAS 141743-16-0)
- [2-(Cyclohexylsulfanyl)-5-nitrophenyl]methyl (2E)-3-phenylprop-2-enoate (CAS 329928-95-2)
- 11-Chloro-8-methyl-7H-benzo[e]pyrido[4,3-b]indol-3-ol (CAS 1262681-43-5)
- 3-(4-Acetyl-phenyl)-2-amino-propionic acid (CAS 22888-49-9)
- iso-Propyl Alcohol-OD (CAS 3979-51-9)
- N-[2-(4-Amino-pyrazol-1-yl)-ethyl]-2-methoxy-acetamidedihydrochloride (CAS 1361113-01-0)
- (2-bromo-5-fluorophenyl)methanesulfonamide (CAS 1182947-94-9)
- 4-Chloro-2-iodobenzoyl chloride (CAS 476619-76-8)
- 2-(3-Methoxybenzyl)bicyclo[2.2.1]heptane-2-carboxylic acid (CAS 1315366-98-3)
- 2-(1-Phenyl-1H-pyrazol-5-yl)ethan-1-ol (CAS 1044856-44-1)
- Semaglutide impurity 83 (CAS CATO-C4X-222683)
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