(3R)-3-(9H-fluoren-9-ylmethoxycarbonylamino)-4-(2-methylphenyl)butanoic acid (3R)-3-(9H-fluoren-9-ylmethoxycarbonylamino)-4-(o-tolyl)butanoic acid (3R)-3-(9H-fluoren-9-ylmethoxycarbonylamino)-4-(o-tolyl)butyric acid (3R)-3-[[9H-fluoren-9-ylmethoxy(oxo)methyl]amino]-4-(2-methylphenyl)butanoic acid 269398-81-4 Fmoc-(R)-3-Amino-4-(2-methylphenyl)-butyric acid CAS 269398-81-4
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 269398-81-4 |
| Molecular Formula | C26H25NO4 |
| Molecular Weight | 415.48 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(3R)-3-(9H-fluoren-9-ylmethoxycarbonylamino)-4-(2-methylphenyl)butanoic acid (3R)-3-(9H-fluoren-9-ylmethoxycarbonylamino)-4-(o-tolyl)butanoic acid (3R)-3-(9H-fluoren-9-ylmethoxycarbonylamino)-4-(o-tolyl)butyric acid (3R)-3-[[9H-fluoren-9-ylmethoxy(oxo)methyl]amino]-4-(2-methylphenyl)butanoic acid 269398-81-4 Fmoc-(R)-3-Amino-4-(2-methylphenyl)-butyric acid (CAS 269398-81-4) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C26H25NO4. Molecular weight: 415.48 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C26H25NO4 |
| Molecular Weight | 415.48 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.) | 2025 |
| Nitrogen Atoms | 1 |
Recommended Standards
- Roseoflavin (CAS 51093-55-1)
- (3R)-3-(9H-fluoren-9-ylmethoxycarbonylamino)-4-(4-methylphenyl)butanoic acid (3R)-3-(9H-fluoren-9-ylmethoxycarbonylamino)-4-(p-tolyl)butanoic acid (3R)-3-(9H-fluoren-9-ylmethoxycarbonylamino)-4-(p-tolyl)butyric acid (3R)-3-[[9H-fluoren-9-ylmethoxy(oxo)methyl]amino]-4-(4-methylphenyl)butanoic acid 269398-86-9 Fmoc-(R)-3-Amino-4-(4-methylphenyl)-butyric acid (CAS 269398-86-9)
- N-Fmoc-N-(3-phenylpropyl)glycine (CAS 2231812-73-8)
- 4-Oxo-4-(4-phenoxyphenyl)butanoic acid (CAS 36330-86-6)
- Ethyl 2,6-difluoroisonicotinate (CAS 1214363-13-9)
- (-)-2-Azabicyclo[2.2.1]hept-5-en-3-one (-)-Vince Lactam (1R)-(-)-2-Azabicyclo[2.2.1]hept-5-en-3-one (1R,4S)-2-Azabicyclo[2.2.1]hept-5-en-3-one 79200-56-9 (CAS 79200-56-9)
- N-Ethyl-2,5-dimethyl-N-phenylbenzenesulfonamide (CAS 26004-48-8)
- Methyl Propyl Carbonate (CAS 56525-42-9)
- 4-Bromo-3,6-difluoro-2-iodoaniline (CAS 1695936-82-3)
- Neuropeptide Y (22-36) (CAS 119019-65-7)
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 13829788188 / jacky.chen@cato-chem.com