DL-4-Hydroxyphenyl-d4-alanine-2,3,3-d3 CAS 402835-78-3

Purity 97%+In StockPharmaceutical Standards
CAS No.402835-78-3
Molecular Formula-
Molecular Weight188.23 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

DL-4-Hydroxyphenyl-d4-alanine-2,3,3-d3 CAS 402835-78-3 chemical structure

Description

The occurrence of DL-4-Hydroxyphenyl-d4-alanine-2,3,3-d3 is closely related to deuterium isotope labeling, an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

CATO supplies DL-4-Hydroxyphenyl-d4-alanine-2,3,3-d3 (CAS 402835-78-3), a certified reference material (molecular formula C9H4D7NO3, MW 188.23 g/mol) for analytical method development and quality control.

The molecular framework of DL-4-Hydroxyphenyl-d4-alanine-2,3,3-d3 (C9H4D7NO3) is characterized by deuterium isotope labeling, an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. 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. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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 FormulaC9H4D7NO3
Molecular Weight188.23 g/mol
AppearancePale yellow to yellow crystalline powder. (faint amine-like odor)
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)8.5
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Nitrogen Atoms1

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