H-Tyr(PO3H2)-OH CAS 21820-51-9

Purity 97%+In StockPharmaceutical Standards
CAS No.21820-51-9
Molecular FormulaC9H12NO6P
Molecular Weight261.17 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

H-Tyr(PO3H2)-OH CAS 21820-51-9 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 261.17 g/mol gives H-Tyr(PO3H2)-OH distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

H-Tyr(PO3H2)-OH (CAS 21820-51-9) is a high-purity analytical reference standard with the molecular formula C9H12NO6P and a molecular weight of 261.17 g/mol.

The molecular framework of H-Tyr(PO3H2)-OH (C9H12NO6P) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a phosphate ester 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 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).

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

CATO manufactures H-Tyr(PO3H2)-OH under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

Molecular FormulaC9H12NO6P
Molecular Weight261.17 g/mol
AppearanceOff-white to pale 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)4.5
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1963
Nitrogen Atoms1

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