1-(3-Nitrophenyl)-5-phenyl-4,5-dihydro-1h-pyrazole-3-carboxylic acid CAS 1264039-55-5
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1264039-55-5 |
| Molecular Formula | C16H13N3O4 |
| Molecular Weight | 311.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1-(3-Nitrophenyl)-5-phenyl-4,5-dihydro-1h-pyrazole-3-carboxylic acid (CAS 1264039-55-5) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C16H13N3O4. Molecular weight: 311.29 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C16H13N3O4 |
| Molecular Weight | 311.29 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 3 |
Related Nitrophenyl Standards
- 1-(4-Nitrophenyl)-5-phenyl-4,5-dihydro-1h-pyrazole-3-carboxylic acid (CAS 1264043-25-5)
- 2-[(2E)-3-(3-Nitrophenyl)prop-2-enamido]benzamide (CAS 188544-09-4)
- 4-Methyl-7-[(4-nitrophenyl)methoxy]-2H-chromen-2-one (CAS 314741-99-6)
- 2-(4-Nitrophenyl)benzo[d]imidazo[2,1-b]thiazol-7-ol (CAS 914224-34-3)
- 1-(2-Nitrophenyl)-3-(trifluoromethyl)-4,5,6,7-tetrahydro-1H-indazole (CAS 1018143-05-9)
- 1-(4-Nitrophenyl)-3-(trifluoromethyl)-4,5,6,7-tetrahydro-1H-indazole (CAS 353457-70-2)
- 2-(5-(2-Nitrophenyl)-1,3,4-oxadiazol-2-yl)benzoic acid (CAS 56894-42-9)
- 2-(5-(3-Nitrophenyl)-1,3,4-oxadiazol-2-yl)benzoic acid (CAS 56894-38-3)
Recommended Standards
- 1253791-09-1 3183AD C16H13N3O4 Ethyl 5-hydroxy-7-oxo-2-phenyl-7,8-dihydropyrido-[2,3-d]pyrimidine-6-carboxylate (CAS 1253791-09-1)
- 7-Chloro-4-(4-fluorophenoxy)quinoline (CAS 124495-00-7)
- 2-Methyl-3,5-dinitro-4-(pentan-3-ylamino)benzoic acid (CAS 127971-53-3)
- 5-Chloro-1-methyl-N-(4-(trifluoromethoxy)phenyl)-3-(trifluoromethyl)-1H-pyrazole-4-carboxamide (CAS 321533-83-9)
- N-(3-Phenylpropyl)-9H-fluorene-9-carboxamide (CAS 329704-34-9)
- [(2-Chloro-5-fluorophenyl)methyl]diethylamine hydrochloride (CAS 1881288-85-2)
- 6-Fluoro-2,3,4,5-tetrahydro-1h-1-benzazepin-9-aminehydrochloride (CAS 2306270-51-7)
- (4-Heptylphenyl)(6-methoxypyridin-2-yl)methanone (CAS 1187171-40-9)
- (E)-3-(2-chlorophenyl)-1-(p-tolyl)prop-2-en-1-one (CAS 38018-63-2)
- Semaglutide Impurity 133 (CAS CATO-C4X-2226133)
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