Tacrolimus Impurity 53 CAS CATO-C4X-130053

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-130053
Molecular FormulaC43H69NO12
Molecular Weight792.01 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Tacrolimus Impurity 53 CAS CATO-C4X-130053 chemical structure

Description

The occurrence of Tacrolimus Impurity 53 is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

Tacrolimus Impurity 53 (CAS CATO-C4X-130053) is a certified pharmaceutical impurity reference standard with the molecular formula C43H69NO12 and a molecular weight of 792.01 g/mol.

Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, Tacrolimus Impurity 53 is typically pale yellow to yellow amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 792.01 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).

Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.

CATO manufactures Tacrolimus Impurity 53 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 FormulaC43H69NO12
Molecular Weight792.01 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)10.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
Nitrogen Atoms1

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