Somatostatin 25 CAS 76461-17-1

Purity >95%In StockPharmaceutical Standards
CAS No.76461-17-1
Molecular FormulaC127H191N37O34S3
Molecular Weight2876.30 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Somatostatin 25 CAS 76461-17-1 chemical structure

Description

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.

Somatostatin 25 (CAS 76461-17-1) is a high-purity analytical reference standard with the molecular formula C127H191N37O34S3 and a molecular weight of 2876.30 g/mol.

Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, Somatostatin 25 is typically pale yellow to yellow amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 2876.30 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

Molecular FormulaC127H191N37O34S3
Molecular Weight2876.30 g/mol
Purity>95%
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)51.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1978
Nitrogen Atoms37
Sulfur Atoms3

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