p-Hydroxyhippuryl-His-Leu-OH CAS 77697-23-5

Purity >95%In StockPharmaceutical Standards
CAS No.77697-23-5
Molecular FormulaC21H27N5O6
Molecular Weight445.47 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

p-Hydroxyhippuryl-His-Leu-OH CAS 77697-23-5 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 445.47 g/mol gives p-Hydroxyhippuryl-His-Leu-OH distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies p-Hydroxyhippuryl-His-Leu-OH (CAS 77697-23-5), a certified reference material (molecular formula C21H27N5O6, MW 445.47 g/mol) for analytical method development and quality control.

Based on its molecular formula C21H27N5O6, p-Hydroxyhippuryl-His-Leu-OH contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 445.47 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.

As a certified reference material (CRM), p-Hydroxyhippuryl-His-Leu-OH 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 FormulaC21H27N5O6
Molecular Weight445.47 g/mol
AppearancePale yellow to yellow crystalline powder
Purity>95%
StorageStore in a cool place (≤25°C), protect from light, keep sealed and dry
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)11.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1979
Nitrogen Atoms5

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