Fmoc-3-chloro-L-phenylalanine CAS 198560-44-0

Purity 97%+In StockPharmaceutical Standards
CAS No.198560-44-0
Molecular FormulaC24H20ClNO4
Molecular Weight421.87 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Fmoc-3-chloro-L-phenylalanine CAS 198560-44-0 chemical structure

Description

The occurrence of Fmoc-3-chloro-L-phenylalanine is closely related to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

Fmoc-3-chloro-L-phenylalanine (CAS 198560-44-0) is a high-purity analytical reference standard with the molecular formula C24H20ClNO4 and a molecular weight of 421.87 g/mol.

Based on its molecular formula C24H20ClNO4, Fmoc-3-chloro-L-phenylalanine 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 421.87 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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.

As a certified reference material (CRM), Fmoc-3-chloro-L-phenylalanine 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 FormulaC24H20ClNO4
Molecular Weight421.87 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor)
Purity97%+
StorageStore at room temperature, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay 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 AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2013
Halogen ContentCl-containing
Nitrogen Atoms1

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