Phosphoramidite Impurity 29 CAS 102987-83-7

Purity ≥95%In StockPharmacopoeial Impurity Standards
CAS No.102987-83-7
Molecular FormulaC34H36N3O9P
Molecular Weight661.64 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Phosphoramidite Impurity 29 CAS 102987-83-7 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 661.64 g/mol gives Phosphoramidite Impurity 29 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Phosphoramidite Impurity 29 (CAS 102987-83-7) is a certified pharmaceutical impurity reference standard with the molecular formula C34H36N3O9P and a molecular weight of 661.64 g/mol.

Based on its molecular formula C34H36N3O9P, Phosphoramidite Impurity 29 contains a nitrogen-containing heterocyclic scaffold, an amide group, a phosphate ester group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 661.64 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.

As a certified reference material (CRM), Phosphoramidite Impurity 29 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC34H36N3O9P
Molecular Weight661.64 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)18.5
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1986
Nitrogen Atoms3

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