2-Chloro-N-(1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1h-pyrazol-4-yl)-5-nitrobenzamide CAS 301233-14-7
| CAS No. | 301233-14-7 |
| Molecular Formula | C18H15ClN4O4 |
| Molecular Weight | 386.79 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of 2-Chloro-N-(1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1h-pyrazol-4-yl)-5-nitrobenzamide (C18H15ClN4O4) is characterized by a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. 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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
2-Chloro-N-(1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1h-pyrazol-4-yl)-5-nitrobenzamide (CAS 301233-14-7) is a high-purity analytical reference standard with the molecular formula C18H15ClN4O4 and a molecular weight of 386.79 g/mol.
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), 2-Chloro-N-(1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1h-pyrazol-4-yl)-5-nitrobenzamide 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 | C18H15ClN4O4 |
| Molecular Weight | 386.79 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
Related Chloro Standards
- (7-CHLORO-2,3-DIHYDRO-2-OXO-5-PHENYL-1H-BENZO-1,4-DIAZEPIN-3-YL) HYDROGEN SUCCINATE (CAS 4700-56-5)
- 2-{[(2E)-3-(3-chloro-4,5-dimethoxyphenyl)-2-cyanoprop-2-enoyl]amino}benzoic acid (CAS 364739-75-3)
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- 3-Chloro-2-(2-(phenylsulfonyl)-1H-pyrrol-1-yl)-5-(trifluoromethyl)pyridine (CAS 338406-56-7)
- 6-Chloro-4-ethyl-4-(4-fluorophenyl)-3-(2,2,2-trifluoroethyl)-3,4-dihydroquinazolin-2(1H)-one (CAS 910483-02-2)
Recommended Standards
- Methyl 4-(3-chlorophenoxy)-1-(4-methoxyphenyl)-6-oxo-1,6-dihydropyridazine-3-carboxylate (CAS 338405-43-9)
- Quazepam (CAS 36735-22-5)
- Lenvatinib Impurity 3 (CAS 417719-51-8)
- Roxadustat Impurity 14 (CAS 808119-86-0)
- benzyl (3S)-3-iodopyrrolidine-1-carboxylate (CAS 1353996-96-9)
- 6-Amino-5-chloro-4-(difluoromethyl)nicotinic acid (CAS 1806831-23-1)
- 1,3-Difluoro-2-(2-methyl-3-nitrophenoxy)-5-(trifluoromethyl)benzene (CAS 2244083-49-4)
- 3-(Prop-1-en-2-yl)benzaldehyde (CAS 123926-80-7)
- N-Ethyl-N-(5-(N-phenylacetamido)-1,3,4-thiadiazol-2-yl)acetamide (CAS 61784-93-8)
- 4-Chloro-3,5-difluorobenzamide (CAS 1431329-78-0)
- (s)-2-Amino-2-(4-bromo-2-methoxyphenyl)ethan-1-ol (CAS 1212799-95-5)
- Monascorubrin (CAS 13283-90-4)
- (3aR,4S,7R,7aS)-Hexahydro-2,2,4-trimethyl-1,3-dioxolo[4,5-c]pyridin-7-ol 122194-06-3 [3aR-(3a|A,4|A,7|A,7a|A)]-Hexahydro-2,2,4-trimethyl-1,3-dioxolo[4,5-c]pyridin-7-ol (CAS 122194-06-3)
- Des-Trp25-Tirzepatide (CAS CATO-CPTD788948)
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