H-Phe-Trp-OH CAS 24587-41-5

Purity >95%In StockPharmaceutical Standards
CAS No.24587-41-5
Molecular FormulaC20H21N3O3
Molecular Weight351.40 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

H-Phe-Trp-OH CAS 24587-41-5 chemical structure

Description

H-Phe-Trp-OH (CAS 24587-41-5) is a high-purity analytical reference standard with the molecular formula C20H21N3O3 and a molecular weight of 351.40 g/mol.

H-Phe-Trp-OH (C20H21N3O3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.

As a certified reference material (CRM), H-Phe-Trp-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 FormulaC20H21N3O3
Molecular Weight351.40 g/mol
AppearancePale yellow to yellow crystalline powder
Purity>95%
StorageStore at 2-8°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)12.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1964
Nitrogen Atoms3

Recommended Standards

Why CATO?