H-Leu-Tyr-Leu-OH (H-3990.0250) CAS 34337-48-9

Purity 97%+In StockPharmaceutical Standards
CAS No.34337-48-9
Molecular FormulaC21H33N3O5
Molecular Weight407.50 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

H-Leu-Tyr-Leu-OH (H-3990.0250) CAS 34337-48-9 chemical structure

Description

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

H-Leu-Tyr-Leu-OH (H-3990.0250) (CAS 34337-48-9) is a high-purity analytical reference standard with the molecular formula C21H33N3O5 and a molecular weight of 407.50 g/mol.

The molecular framework of H-Leu-Tyr-Leu-OH (H-3990.0250) (C21H33N3O5) is characterized by a flavonoid core, 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).

CATO manufactures H-Leu-Tyr-Leu-OH (H-3990.0250) 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 FormulaC21H33N3O5
Molecular Weight407.50 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity97%+
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)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1966
Nitrogen Atoms3

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