Tacrolimus Impurity 56 CAS CATO-C4X-130056

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-130056
Molecular FormulaC44H69NO12
Molecular Weight804.02 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Tacrolimus Impurity 56 CAS CATO-C4X-130056 chemical structure

Description

CATO supplies Tacrolimus Impurity 56 (CAS CATO-C4X-130056), a pharmacopoeial impurity reference standard (molecular formula C44H69NO12, MW 804.02 g/mol) used for the identification and quantification of trace impurities in APIs.

Tacrolimus Impurity 56 (C44H69NO12) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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 Tacrolimus Impurity 56 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 FormulaC44H69NO12
Molecular Weight804.02 g/mol
Purity97%+
StorageStore at room temperature, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)11.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
Nitrogen Atoms1

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