Fmoc-Phe(4-Boc<SUB>2</SUB>-guanidino)-OH CAS 187283-25-6

Purity 97%+In StockPharmaceutical Standards
CAS No.187283-25-6
Molecular FormulaC35H58N4O8
Molecular Weight662.86 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Fmoc-Phe(4-Boc<SUB>2</SUB>-guanidino)-OH CAS 187283-25-6 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 662.86 g/mol gives Fmoc-Phe(4-Boc<SUB>2</SUB>-guanidino)-OH distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Fmoc-Phe(4-Boc<SUB>2</SUB>-guanidino)-OH (CAS 187283-25-6) is a high-purity analytical reference standard with the molecular formula C35H58N4O8 and a molecular weight of 662.86 g/mol.

The molecular framework of Fmoc-Phe(4-Boc<SUB>2</SUB>-guanidino)-OH (C35H58N4O8) is characterized by a nitrogen-containing heterocyclic scaffold, 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 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.

As a certified reference material (CRM), Fmoc-Phe(4-Boc<SUB>2</SUB>-guanidino)-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 FormulaC35H58N4O8
Molecular Weight662.86 g/mol
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)9.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2010
Nitrogen Atoms4

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