4-Hydroxy-2-methyl-5-nitropyridazin-3(2H)-one CAS 2854-56-0
| CAS No. | 2854-56-0 |
| Molecular Formula | C5H5N3O4 |
| Molecular Weight | 171.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 4-Hydroxy-2-methyl-5-nitropyridazin-3(2H)-one.
4-Hydroxy-2-methyl-5-nitropyridazin-3(2H)-one (CAS 2854-56-0), molecular formula C5H5N3O4 and molecular weight 171.11 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 4-Hydroxy-2-methyl-5-nitropyridazin-3(2H)-one (C5H5N3O4) is characterized by a carbohydrate-derived structure, an amide 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 analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 4-Hydroxy-2-methyl-5-nitropyridazin-3(2H)-one 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 | C5H5N3O4 |
| Molecular Weight | 171.11 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 3 |
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Recommended Standards
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- 8-Bromo-6-methyltetrazolo[1,5-a]pyridine (CAS 1820712-78-4)
- 1-(2-Bromophenyl)-4,4-dimethyl-1,4-dihydropyrimidine-2-thiol (CAS 1142212-09-6)
- N-(Benzo[d][1,3]dioxol-5-yl)-2,3,5,6-tetramethylbenzenesulfonamide (CAS 690962-09-5)
- 1H-Benz[e]indene-6-propanoicacid,dodecahydro-6,9a,9b-trimethyl-7-(1-methylethenyl)-3-[(2S,5S)-tetrahydro-5-(1-hydroxy-1-methylethyl)-2-methyl-2-furanyl]-,(3S,3aR,5aR,6S,7S,9aR,9bR)- 56421-13-7 (CAS 56421-13-7)
- 3-Chloro-4-(thiomethyl)benzophenone (CAS 197438-99-6)
- Des-Pro36-Tirzepatide (CAS CATO-CPTD788937)
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