H-Leu-Ser-p-nitro-Phe-Nle-Ala-Leu-OMe trifluoroacetate salt CAS 99764-63-3

Purity 97%+In StockPharmaceutical Standards
CAS No.99764-63-3
Molecular FormulaC34H55N7O10
Molecular WeightN/A
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

H-Leu-Ser-p-nitro-Phe-Nle-Ala-Leu-OMe trifluoroacetate salt CAS 99764-63-3 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 835.88 g/mol gives H-Leu-Ser-p-nitro-Phe-Nle-Ala-Leu-OMe trifluoroacetate salt distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

H-Leu-Ser-p-nitro-Phe-Nle-Ala-Leu-OMe trifluoroacetate salt (CAS 99764-63-3), molecular formula C34H55N7O10C2HF3O2 and molecular weight 835.88 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, H-Leu-Ser-p-nitro-Phe-Nle-Ala-Leu-OMe trifluoroacetate salt (C34H55N7O10C2HF3O2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 835.88 g/mol, it falls into the high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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-Leu-Ser-p-nitro-Phe-Nle-Ala-Leu-OMe trifluoroacetate salt 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 FormulaC34H55N7O10 C2HF3O2
Molecular Weight835.88 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; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)11.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1985
Halogen ContentF-containing
Nitrogen Atoms7

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