Clemastine Impurity 4 CAS 20763-27-3

Purity 97%+In StockPharmaceutical Standards
CAS No.20763-27-3
Molecular FormulaC7H14N
Molecular WeightN/A
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Clemastine Impurity 4 CAS 20763-27-3 chemical structure

Description

The occurrence of Clemastine Impurity 4 is closely related to chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

Clemastine Impurity 4 (CAS 20763-27-3) is a high-purity analytical reference standard with the molecular formula C7H14NCl and a molecular weight of 147.65 g/mol.

Structurally, Clemastine Impurity 4 (C7H14NCl) contains chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 1.0, corresponding to approximately 1 ring(s) or double-bond equivalent(s). With a molecular weight of 147.65 g/mol, it falls into the low-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

Molecular FormulaC7H14N Cl
Molecular Weight147.65 g/mol
Purity97%+
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.)1962
Halogen ContentCl-containing
Nitrogen Atoms1

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