(3S)-4-(3-chlorophenyl)-3-(9H-fluoren-9-ylmethoxycarbonylamino)butanoic acid (3S)-4-(3-chlorophenyl)-3-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid (3S)-4-(3-chlorophenyl)-3-[[9H-fluoren-9-ylmethoxy(oxo)methyl]amino]butanoic acid 270596-40-2 Fmoc-(S)-3-Amino-4-(3-chlorophenyl)-butyric acid CAS 270596-40-2
| CAS No. | 270596-40-2 |
| Molecular Formula | C25H22ClNO4 |
| Molecular Weight | 435.90 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
(3S)-4-(3-chlorophenyl)-3-(9H-fluoren-9-ylmethoxycarbonylamino)butanoic acid (3S)-4-(3-chlorophenyl)-3-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid (3S)-4-(3-chlorophenyl)-3-[[9H-fluoren-9-ylmethoxy(oxo)methyl]amino]butanoic acid 270596-40-2 Fmoc-(S)-3-Amino-4-(3-chlorophenyl)-butyric acid (CAS 270596-40-2), molecular formula C25H22ClNO4 and molecular weight 435.90 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of (3S)-4-(3-chlorophenyl)-3-(9H-fluoren-9-ylmethoxycarbonylamino)butanoic acid (3S)-4-(3-chlorophenyl)-3-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid (3S)-4-(3-chlorophenyl)-3-[[9H-fluoren-9-ylmethoxy(oxo)methyl]amino]butanoic acid 270596-40-2 Fmoc-(S)-3-Amino-4-(3-chlorophenyl)-butyric acid (C25H22ClNO4) is characterized by a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. 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. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
As a certified reference material (CRM), (3S)-4-(3-chlorophenyl)-3-(9H-fluoren-9-ylmethoxycarbonylamino)butanoic acid (3S)-4-(3-chlorophenyl)-3-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid (3S)-4-(3-chlorophenyl)-3-[[9H-fluoren-9-ylmethoxy(oxo)methyl]amino]butanoic acid 270596-40-2 Fmoc-(S)-3-Amino-4-(3-chlorophenyl)-butyric 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 | C25H22ClNO4 |
| Molecular Weight | 435.90 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related S Standards
- (3S)-4-(2-chlorophenyl)-3-(9H-fluoren-9-ylmethoxycarbonylamino)butanoic acid (3S)-4-(2-chlorophenyl)-3-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid (3S)-4-(2-chlorophenyl)-3-[[9H-fluoren-9-ylmethoxy(oxo)methyl]amino]butanoic acid 270596-37-7 Fmoc-(S)-3-Amino-4-(2-chlorophenyl)-butyric acid (CAS 270596-37-7)
- 1-((4-Chlorophenyl)sulfonyl)-N'-(4-methylbenzoyl)piperidine-4-carbohydrazide (CAS 477872-85-8)
- 2-((4-(4-Chlorophenyl)-5-(pyridin-4-yl)-4H-1,2,4-triazol-3-yl)thio)-N-(o-tolyl)acetamide (CAS 476484-03-4)
- 4-(((5-(4-Chlorophenyl)-4-(p-tolyl)-4H-1,2,4-triazol-3-yl)thio)methyl)benzoic acid (CAS 443741-75-1)
- 3-[(2-Chlorophenyl)methanesulfonyl]-2-hydroxy-2-methyl-N-[4-(trifluoromethyl)phenyl]propanamide (CAS 338956-22-2)
- 3-[(4-Chlorophenyl)methanesulfonyl]-2-hydroxy-2-methyl-N-[3-(trifluoromethyl)phenyl]propanamide (CAS 339275-64-8)
- 5-((4-Chlorophenyl)sulfonyl)-4-((3-methoxyphenyl)thio)-N,N-dimethylpyrimidin-2-amine (CAS 478080-93-2)
- Ethyl 4-((4-chlorophenyl)sulfonyl)-1-(4-methylbenzyl)piperidine-4-carboxylate (CAS 866150-05-2)
Recommended Standards
- N-{[(5-chloro-2-methoxyphenyl)carbamothioyl]amino}-2-[(2,2-dimethyl-2,3-dihydro-1-benzofuran-7-yl)oxy]acetamide (CAS 1024183-79-6)
- Laropiprant (CAS 571170-77-9)
- Fmoc-(R)-3-amino-4-(4-chlorophenyl)butyric acid, (CAS 331763-60-1)
- 2-Chloro-N-{4-[(4-fluorophenyl)sulfanyl]phenyl}-4-methanesulfonylbenzamide (CAS 339011-57-3)
- 4-(Chloromercuri)benzenesulfonic Acid Sodium Salt (CAS 14110-97-5)
- 4-Chloro-6-(1,5-dimethyl-1H-pyrazol-3-yl)-2-(1-methoxyethyl)pyrimidine (CAS 1708288-58-7)
- Ethyl 2-benzyl-2-nitro-3-phenylpropanoate (CAS 156122-25-7)
- 6-Methylpyridine-2,3-diamine dihydrochloride (CAS 77712-94-8)
- 1,7-Bis(5-methyl-1-phenyl-1H-pyrazol-4-yl)hepta-1,6-diene-3,5-dione-difluoroboron (CAS 1623747-97-6)
- N-(2,3-dichlorobenzyl)cyclopropanamine (CAS 625437-42-5)
- 2-(3-(2-Chloroethyl)ureido)-N,N-dimethylethane-1-sulfonamide (CAS 91893-26-4)
- methyl 4-oxo-4-((thiophen-2-ylmethyl)amino)butanoate (CAS 1798214-56-8)
- Remimazolam Impurity 13 (CAS CATO-C4X-282313)
- Peptide 441 (CAS CATO-CPTD788441)
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