Metformin Unknown Impurity 1 CAS CATO-CPS-2509001
| CAS No. | CATO-CPS-2509001 |
| Molecular Formula | C4H7N5 |
| Molecular Weight | 125.13 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Metformin Unknown Impurity 1 is closely related to a nitrile group in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Metformin Unknown Impurity 1 (CAS CATO-CPS-2509001) is a certified pharmaceutical impurity reference standard with the molecular formula C4H7N5 and a molecular weight of 125.13 g/mol.
The molecular framework of Metformin Unknown Impurity 1 (C4H7N5) is characterized by a nitrile group. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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.
As a certified reference material (CRM), Metformin Unknown Impurity 1 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 Formula | C4H7N5 |
| Molecular Weight | 125.13 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Nitrogen Atoms | 5 |
Related Metformin Standards
Recommended Standards
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- Gly-Neuroendocrine Regulatory Peptide-3 (human, mouse, rat) trifluoroacetate salt (CAS 1815618-19-9)
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