Metamizole Sodium Monohydrate CAS 5907-38-0
| CAS No. | 5907-38-0 |
| Molecular Formula | C13H16N3O4S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of Metamizole Sodium Monohydrate (C13H16N3O4SNaH2O) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. 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).
CATO supplies Metamizole Sodium Monohydrate (CAS 5907-38-0), a certified reference material (molecular formula C13H16N3O4SNaH2O, MW 351.35 g/mol) for analytical method development and quality control.
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.
As a certified reference material (CRM), Metamizole Sodium Monohydrate 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 | C13H16N3O4S Na H2O |
| Molecular Weight | 351.35 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Metamizole Standards
- Metamizole Monohydrate EP Impurity E (CAS 117-38-4(free base))
- Metamizole EP Impurity E Sodium Salt (CAS 129-89-5)
- Metamizole Impurity 15 (CAS 23197-23-1)
- Metamizole free (CAS 50567-35-6)
- Metamizole EP Impurity C (CAS 519-98-2)
- 【禁售不询】Metamizole EP Impurity D (CAS 58-15-1)
- Metamizole Magnesium Salt (CAS 63372-86-1)
- Metamizole Impurity 5 (CAS 810-16-2)
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- 6-Chloro-N-(tetrahydro-2H-pyran-4-ylmethyl)-2-pyrazinamine (CAS 1220029-70-8)
- Insulin Degludec impurity 4 (CAS CATO-C4X-21574)
Why CATO?
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