4-chloro-2-{[(9H-fluoren-9-ylmethoxy)carbonyl]amino}pent-4-enoic acid CAS 2059934-88-0
| CAS No. | 2059934-88-0 |
| Molecular Formula | C20H18ClNO4 |
| Molecular Weight | 371.81 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-chloro-2-{[(9H-fluoren-9-ylmethoxy)carbonyl]amino}pent-4-enoic acid (CAS 2059934-88-0), molecular formula C20H18ClNO4 and molecular weight 371.81 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C20H18ClNO4, 4-chloro-2-{[(9H-fluoren-9-ylmethoxy)carbonyl]amino}pent-4-enoic acid contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 371.81 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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.
CATO manufactures 4-chloro-2-{[(9H-fluoren-9-ylmethoxy)carbonyl]amino}pent-4-enoic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C20H18ClNO4 |
| Molecular Weight | 371.81 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
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Recommended Standards
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- [1-(6-chloropyrimidin-4-yl)piperidin-3-yl]methanol (CAS 939986-74-0)
- 5-methyl-4-(2,4,6-trifluorophenyl)-1,3-thiazol-2-amine (CAS 1152502-56-1)
- 4-(Bromomethyl)-1-chloro-2-iodobenzene (CAS 136558-15-1)
- 3-(4-((3-Methylbenzyl)oxy)phenyl)acrylic acid (CAS 938247-81-5)
- Bbr-34384 (CAS 438244-41-8)
- 6-Fluoro-1-(hydroxymethyl)naphthalene (CAS 1261594-29-9)
- Saxagliptin (S,R,S,R)-Isomer (CAS 1564266-03-0)
- 4-Chloro-1-isobutyl-1H-pyrazole-3-carboxylic acid (CAS 1006493-72-6)
- Peptide-GMF (CAS CATO-CPTD788469)
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