H-Pro-His-Tyr-OH CAS 81075-04-9

Purity >95%In StockPharmaceutical Standards
CAS No.81075-04-9
Molecular FormulaC20H25N5O5
Molecular Weight415.44 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

H-Pro-His-Tyr-OH CAS 81075-04-9 chemical structure

Description

As a certified reference material (CRM), H-Pro-His-Tyr-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.

H-Pro-His-Tyr-OH (CAS 81075-04-9) is a high-purity analytical reference standard with the molecular formula C20H25N5O5 and a molecular weight of 415.44 g/mol.

Based on its molecular formula C20H25N5O5, H-Pro-His-Tyr-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 415.44 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.

Physical & Chemical Properties

Molecular FormulaC20H25N5O5
Molecular Weight415.44 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.)1980
Nitrogen Atoms5

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