(R,R)-Formoterol EP Impurity H CAS 1337876-26-2

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.1337876-26-2
Molecular FormulaC26H30N2O4
Molecular Weight434.53 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

(R,R)-Formoterol EP Impurity H CAS 1337876-26-2 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 434.53 g/mol gives (R,R)-Formoterol EP Impurity H distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

As a process- or degradation-related impurity, (R,R)-Formoterol EP Impurity H (CAS 1337876-26-2, C26H30N2O4) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.

The molecular framework of (R,R)-Formoterol EP Impurity H (C26H30N2O4) is characterized by a steroid core, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).

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 (R,R)-Formoterol EP Impurity H 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 FormulaC26H30N2O4
Molecular Weight434.53 g/mol
AppearancePale yellow to yellow crystalline powder
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)13.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1991
Nitrogen Atoms2

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