(R)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-4-(2,5-dimethoxyphenyl)butanoic acid CAS 1260587-66-3
| CAS No. | 1260587-66-3 |
| Molecular Formula | C27H27NO6 |
| Molecular Weight | 461.51 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(R)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-4-(2,5-dimethoxyphenyl)butanoic acid (CAS 1260587-66-3) is a high-purity analytical reference standard with the molecular formula C27H27NO6 and a molecular weight of 461.51 g/mol.
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, (R)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-4-(2,5-dimethoxyphenyl)butanoic acid is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 461.51 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
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 | C27H27NO6 |
| Molecular Weight | 461.51 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
- (5S,8S,10aR)-3-((Benzyloxy)carbonyl)-5-((tert-butoxycarbonyl)amino)-6-oxodecahydropyrrolo[1,2-a][1,5]diazocine-8-carboxylic acid (CAS 1151889-89-2)
- (R)-3-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-2-(2,3-dimethoxybenzyl)propanoic acid (CAS 1260591-77-2)
- 2-[(3,4-dimethoxyphenyl)methyl]-3-({[(9h-fluoren-9-yl)methoxy]carbonyl}amino)propanoic acid (CAS 1076197-02-8)
- (S)-3-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-2-(2,4-dimethoxybenzyl)propanoic acid (CAS 1260591-84-1)
- 2-Methyl-N,N-diphenylaniline (CAS 139580-37-3)
- Demethyl-davosamine a0 (CAS CATO-C4X-160244)
- Decahydro-1H-benzo[b]azepine hydrochloride (CAS 1427380-23-1)
- 1-(Hydroxymethyl)-3-methylenecyclobutane-1-carbonitrile (CAS 1187595-38-5)
- Bisoprolol EP impurity K Maleic Acid (CAS 864544-37-6(free base))
- 1-(1-Methyl-1H-pyrazol-5-yl)propan-1-amine (CAS 1177334-24-5)
- 1-(5-Bromofuran-2-yl)propan-1-one (CAS 99834-94-3)
- 4-Borononicotinic acid (CAS 1799980-39-4)
- 4-Bromo-6,7-dichloro-2-phenylquinoline (CAS 1189106-22-6)
- Semaglutide impurity 92 (CAS CATO-C4X-222692)
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