Cimetidine EP Impurity B CAS 138035-55-9

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.138035-55-9
Molecular FormulaC10H15N5OS
Molecular Weight253.32 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Cimetidine EP Impurity B CAS 138035-55-9 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 253.32 g/mol gives Cimetidine EP Impurity B distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Cimetidine EP Impurity B (CAS 138035-55-9) is a certified pharmaceutical impurity reference standard with the molecular formula C10H15N5OS and a molecular weight of 253.32 g/mol.

Based on its molecular formula C10H15N5OS, Cimetidine EP Impurity B contains a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 253.32 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).

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 Cimetidine EP Impurity B 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 FormulaC10H15N5OS
Molecular Weight253.32 g/mol
Purity>95%
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1996
Nitrogen Atoms5
Sulfur Atoms1

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