Fmoc-D-Phe(4-Cl)-OH CAS 142994-19-2
| CAS No. | 142994-19-2 |
| Molecular Formula | C24H20ClNO4 |
| Molecular Weight | 421.87 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Fmoc-D-Phe(4-Cl)-OH (C24H20ClNO4) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
CATO supplies Fmoc-D-Phe(4-Cl)-OH (CAS 142994-19-2), a certified reference material (molecular formula C24H20ClNO4, MW 421.87 g/mol) for analytical method development and quality control.
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 Fmoc-D-Phe(4-Cl)-OH 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 | C24H20ClNO4 |
| Molecular Weight | 421.87 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | >95% |
| 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.) | 1997 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Fmoc Standards
- Fmoc-(R)-3-Amino-3-(3-chlorophenyl)-propionic acid (CAS 511272-53-0)
- Fmoc-(R)-3-Amino-3-(4-chlorophenyl)-propionic acid (CAS 479064-92-1)
- Fmoc-(s)-3-amino-3-(4-chlorophenyl)propionic acid (CAS 479064-91-0)
- Fmoc-2-chloro-D-phenylalanine (CAS 205526-22-3)
- Fmoc-2-chloro-L-phenylalanine (CAS 198560-41-7)
- Fmoc-3-amino-3-(2-chlorophenyl)-propionic acid (CAS 284492-14-4)
- Fmoc-3-chloro-D-phenylalanine (CAS 205526-23-4)
- Fmoc-3-chloro-L-phenylalanine (CAS 198560-44-0)
Recommended Standards
- Fmoc-Phe(4-Cl)-OH (CAS 175453-08-4)
- N-(1-(1-(3-Chlorophenyl)-1H-pyrazolo[3,4-d]pyrimidin-4-yl)-3-methyl-1H-pyrazol-5-yl)cyclopentanecarboxamide (CAS 1005925-62-1)
- 4-(4-Chlorophenyl)-3-methyl-1-phenylindeno[1,2-b]pyrazolo[4,3-e]pyridin-5(1H)-one (CAS 1009630-24-3)
- 1274948-09-2 5-[(E)-[(4-butoxyphenyl)methylidene]amino]-1-(4-chlorophenyl)-6-imino-2-oxo-1,2,3,6-tetrahydropyrimidine-4-carbonitrile MS-8937 (CAS 1274948-09-2)
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- 6,7-Dihydro-5H-cyclopenta[b]pyridin-5-amine (CAS 535935-84-3)
- Semaglutide Impurity 189 (CAS CATO-C4X-2226189)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com