Promethazine Impurity 40 CAS 98025-87-7

Purity ≥95%In StockPharmacopoeial Impurity Standards
CAS No.98025-87-7
Molecular FormulaC4H10ClN
Molecular WeightN/A
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Promethazine Impurity 40 CAS 98025-87-7 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 144.04 g/mol gives Promethazine Impurity 40 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

As a process- or degradation-related impurity, Promethazine Impurity 40 (CAS 98025-87-7, C4H10ClNHCl) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.

Structurally, Promethazine Impurity 40 (C4H10ClNHCl) contains chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of -1.0, corresponding to approximately 0 ring(s) or double-bond equivalent(s). With a molecular weight of 144.04 g/mol, it falls into the low-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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 Promethazine Impurity 40 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 FormulaC4H10ClN HCl
Molecular Weight144.04 g/mol
Purity≥95%
StorageStore at 2-8°C, protect from light, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, acetonitrile, DMSO
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)-1.0
CAS Registry Year (est.)1985
Halogen ContentCl-containing
Nitrogen Atoms1

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