Linaclotide Impurity 18 CAS CATO-C4X-210618

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-210618
Molecular FormulaC59H79N15O21S6
Molecular Weight1526.73 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Linaclotide Impurity 18 CAS CATO-C4X-210618 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 1526.73 g/mol gives Linaclotide Impurity 18 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Linaclotide Impurity 18 (CAS CATO-C4X-210618), a pharmacopoeial impurity reference standard (molecular formula C59H79N15O21S6, MW 1526.73 g/mol) used for the identification and quantification of trace impurities in APIs.

Based on its molecular formula C59H79N15O21S6, Linaclotide Impurity 18 contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 1526.73 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.

CATO manufactures Linaclotide Impurity 18 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 FormulaC59H79N15O21S6
Molecular Weight1526.73 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)28.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
Nitrogen Atoms15
Sulfur Atoms6

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