H-Asp(His-OH)-OH CAS 20223-80-7

Purity >95%In StockPharmaceutical Standards
CAS No.20223-80-7
Molecular FormulaC10H14N4O5
Molecular Weight270.24 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

H-Asp(His-OH)-OH CAS 20223-80-7 chemical structure

Description

Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, H-Asp(His-OH)-OH is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 270.24 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).

H-Asp(His-OH)-OH (CAS 20223-80-7) is a high-purity analytical reference standard with the molecular formula C10H14N4O5 and a molecular weight of 270.24 g/mol.

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), H-Asp(His-OH)-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 FormulaC10H14N4O5
Molecular Weight270.24 g/mol
AppearanceOff-white to pale yellow crystalline powder. (faint amine-like odor)
Purity>95%
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)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1962
Nitrogen Atoms4

Recommended Standards

Why CATO?