| CAS No. | 20729-41-3 |
| Molecular Formula | C2H5N |
| Molecular Weight | 43.07 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Metronidazole Impurity 26.
Metronidazole Impurity 26 (CAS 20729-41-3) is a high-purity analytical reference standard with the molecular formula C2H5N and a molecular weight of 43.07 g/mol.
Owing to an organic framework, Metronidazole Impurity 26 is typically white to off-white liquid. Its solid-state physicochemical attributes — including a molecular weight of 43.07 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures Metronidazole Impurity 26 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.
| Molecular Formula | C2H5N |
| Molecular Weight | 43.07 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 1.0 |
| CAS Registry Year (est.) | 1962 |
| Nitrogen Atoms | 1 |