2-Methyl-5-(piperazin-1-yl)pyridazin-3(2H)-one CAS 159430-53-2
| CAS No. | 159430-53-2 |
| Molecular Formula | C9H14N4O |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 2-Methyl-5-(piperazin-1-yl)pyridazin-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.
2-Methyl-5-(piperazin-1-yl)pyridazin-3(2H)-one (CAS 159430-53-2), molecular formula C9H14N4OHClH2O and molecular weight 248.71 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 2-Methyl-5-(piperazin-1-yl)pyridazin-3(2H)-one (C9H14N4OHClH2O) contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 248.71 g/mol, it falls into the medium-molecular-weight range. 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).
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.
Physical & Chemical Properties
| Molecular Formula | C9H14N4O 2*HCl 2*H2O |
| Molecular Weight | 248.71 g/mol |
| Appearance | White to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 2002 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
Related Methyl Standards
- 2-(3-(Piperazin-1-yl)propyl)isoindoline-1,3-dione (CAS 1000547-80-7)
- (4-Methyl-piperazin-1-yl)-(S)-pyrrolidin-2-yl-methanone (CAS 100158-68-7)
- (6-(Piperazin-1-yl)pyridin-3-yl)boronic acid (CAS 1003043-67-1)
- (2-(Piperazin-1-yl)pyridin-4-yl)boronic acid (CAS 1003043-70-6)
- N-(4-(Piperazin-1-ylsulfonyl)phenyl)acetamide (CAS 100318-71-6)
- Piperazin-1-yl(m-tolyl)methanone hydrochloride (CAS 100940-01-0)
- 2-(Piperazin-1-yl)phenol (CAS 1011-17-2)
- 2-phenyl-1-(piperazin-1-yl)butan-1-one (CAS 1016503-45-9)
Recommended Standards
- (E)-3-(2-(methylamino)thiazol-5-yl)-3-oxopropanal O-(4-chlorobenzyl) oxime (CAS 338400-19-4)
- 4-(Chlorocarbonyl)phenyl methyl carbonate (CAS 78152-12-2)
- 3-(Azepan-2-yl)quinoline acetate (CAS 1210740-44-5)
- N-(4-Isobutoxybenzyl)-3-methylaniline (CAS 898507-01-2)
- 2-[(E)-2-(2,4-Dichlorophenyl)ethenyl]-1H-imidazole (CAS 213179-56-7)
- Ethyl 3-(cyclopentylamino)propanoate (CAS 928788-22-1)
- Benzyl(chloro)bis(triphenylphosphine)palladium(II) (CAS 86633-24-1)
- Methyl 4,6-dimethoxypyrimidine-2-carboxylate (CAS 202350-72-9)
- 6-Methyl-2-(4-((2-methylpiperidin-1-yl)sulfonyl)benzamido)-4,5,6,7-tetrahydrothieno[2,3-c]pyridine-3-carboxamide (CAS 449767-16-2)
- Peptide Impurity 26 (CAS 1350456-66-4)
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