(4Z)-4-[(Dimethylamino)methylene]-2,4-dihydro-5-methyl-2-(4-nitrophenyl)-3H-pyrazol-3-one CAS 1164564-44-6
| CAS No. | 1164564-44-6 |
| Molecular Formula | C13H14N4O3 |
| Molecular Weight | 274.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 274.28 g/mol gives (4Z)-4-[(Dimethylamino)methylene]-2,4-dihydro-5-methyl-2-(4-nitrophenyl)-3H-pyrazol-3-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
(4Z)-4-[(Dimethylamino)methylene]-2,4-dihydro-5-methyl-2-(4-nitrophenyl)-3H-pyrazol-3-one (CAS 1164564-44-6), molecular formula C13H14N4O3 and molecular weight 274.28 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of (4Z)-4-[(Dimethylamino)methylene]-2,4-dihydro-5-methyl-2-(4-nitrophenyl)-3H-pyrazol-3-one (C13H14N4O3) is characterized by a nitrogen-containing heterocyclic scaffold, an amide 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).
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), (4Z)-4-[(Dimethylamino)methylene]-2,4-dihydro-5-methyl-2-(4-nitrophenyl)-3H-pyrazol-3-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 | C13H14N4O3 |
| Molecular Weight | 274.28 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Nitrogen Atoms | 4 |
Related Z Standards
- (5Z)-5-[(Dimethylamino)methylidene]-4-methyl-3-(4-nitrophenyl)-2,5-dihydrofuran-2-one (CAS 338976-32-2)
- N-(4-(Dimethylamino)phenyl)-3-methoxy-1-methyl-1H-pyrazole-4-carboxamide (CAS 1014027-54-3)
- N'-(4-(Dimethylamino)benzyl)-3-methylisoxazole-5-carbohydrazide (CAS 101670-70-6)
- Ethyl 4-(dimethylamino)-8-methoxyquinoline-3-carboxylate (CAS 1018135-37-9)
- 4-(Dimethylamino)-N-(5-phenyl-1,3,4-oxadiazol-2-yl)butanamide (CAS 89758-18-9)
- N'-(3-(Dimethylamino)benzyl)-5-methylisoxazole-3-carbohydrazide (CAS 93760-76-0)
- N'-(4-(Dimethylamino)benzyl)-5-methylisoxazole-3-carbohydrazide (CAS 328-33-6)
- n-(2-(Dimethylamino)-2-methylpropyl)-2-fluorobenzenesulfonamide (CAS 1223372-06-2)
Recommended Standards
- 1-(4-(2,2,2-Trifluoroethoxy)benzyl)piperazine (CAS 1150344-96-9)
- 5-Methyl-1-(4-oxo-3,4,5,6,7,8-hexahydroquinazolin-2-yl)-1H-pyrazole-4-carboxylic acid (CAS 1177204-21-5)
- Ethyl 3-cyano-6-(3-hydroxypropyl)pyrazolo[1,5-a]pyrimidine-7-carboxylate (CAS 1111447-30-3)
- 4-(4-methoxypiperidin-1-yl)-3-(trifluoromethyl)aniline (CAS 1183432-63-4)
- Methyl 3-nitro-4-[4-(3-nitropyridin-2-yl)piperazin-1-yl]benzoate (CAS 478246-52-5)
- n-[amino(dodecylsulfanyl)methylidene]-2-methoxyEthylamine hydrobromide (CAS 1221728-80-8)
- 2-(3-Hydroxy-3-methylazetidin-1-yl)acetonitrile (CAS 1494418-23-3)
- 8-Isopropoxy-1,4-dioxaspiro[4.5]decane (CAS 950771-91-2)
- 2-(Dimethylamino)-5-(trifluoromethyl)benzaldehyde, 97% (CAS 945847-58-5)
- (1,2,5-Trimethyl-1h-pyrrol-3-yl)methanamine (CAS 1019117-62-4)
- 3-(Cyclopropylmethoxy)-2,2-dimethylpropane-1-sulfonyl chloride (CAS 1484027-84-0)
- n-(3,4,5-Trifluorobenzyl)cyclopropanamine (CAS 1341661-91-3)
- Pazufloxacin Impurity 12 (CAS CATO-C4X-233212)
- Cholecystokinin Octapeptide (1-4) (desulfated) (CAS 80790-40-5)
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