(S)-Fmoc-2-amino-4-bromobutyric Acid CAS 172169-88-9

Purity 97%+In StockPharmaceutical Standards
CAS No.172169-88-9
Molecular FormulaC19H18BrNO4
Molecular Weight404.25 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(S)-Fmoc-2-amino-4-bromobutyric Acid CAS 172169-88-9 chemical structure

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including (S)-Fmoc-2-amino-4-bromobutyric Acid.

(S)-Fmoc-2-amino-4-bromobutyric Acid (CAS 172169-88-9), molecular formula C19H18BrNO4 and molecular weight 404.25 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C19H18BrNO4, (S)-Fmoc-2-amino-4-bromobutyric Acid contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 404.25 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.

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

Molecular FormulaC19H18BrNO4
Molecular Weight404.25 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)11.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2006
Halogen ContentBr-containing
Nitrogen Atoms1

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