1-(2-Fluorobenzyl)-3-nitro-1H-pyrazole-5-carboxylic acid CAS 956264-13-4
| CAS No. | 956264-13-4 |
| Molecular Formula | C11H8FN3O4 |
| Molecular Weight | 265.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 265.20 g/mol gives 1-(2-Fluorobenzyl)-3-nitro-1H-pyrazole-5-carboxylic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
1-(2-Fluorobenzyl)-3-nitro-1H-pyrazole-5-carboxylic acid (CAS 956264-13-4) is a high-purity analytical reference standard with the molecular formula C11H8FN3O4 and a molecular weight of 265.20 g/mol.
Structurally, 1-(2-Fluorobenzyl)-3-nitro-1H-pyrazole-5-carboxylic acid (C11H8FN3O4) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 265.20 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 1-(2-Fluorobenzyl)-3-nitro-1H-pyrazole-5-carboxylic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C11H8FN3O4 |
| Molecular Weight | 265.20 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, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 3 |
Related Fluorobenzyl Standards
- 1-(4-Fluorobenzyl)-1H-1,2,3-triazole-4,5-dicarboxylic acid (CAS 1260949-79-8)
- 2-(2-Fluorobenzyl)-1,5-dimethyl-4-nitro-1h-pyrazol-3(2h)-one (CAS 2007909-46-6)
- Methyl 1-(4-fluorobenzyl)-6-oxopiperidine-3-carboxylate (CAS 1069137-98-9)
- 2-(4-(4-Fluorobenzyl)piperidin-1-yl)-2-oxoacetic acid (CAS 496054-85-4)
- Ethyl 2-[(4-fluorobenzyl)amino]-cyclopentanecarboxylate (CAS 1355334-68-7)
- Methyl 2-(1-(4-fluorobenzyl)piperidin-4-yl)acetate (CAS 174561-03-6)
- Ethyl 1-(4-fluorobenzyl)piperidine-4-carboxylate (CAS 193538-24-8)
- 4-{[(4-Fluorobenzyl)amino]-methyl}cyclohexanecarboxylic acid (CAS 440648-01-1)
Recommended Standards
- Methyl 1-(2-fluoro-4-nitrophenyl)-1H-pyrazole-4-carboxylate (CAS 181997-37-5)
- 1-Isopropyl-4-((4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)methylene)piperidine (CAS 2246738-57-6)
- Bortezomib Impurity 80 (CAS 179324-86-8)
- 1-methyl-4-(tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-indole (CAS 898289-06-0)
- 2-Benzyl-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 87100-28-5)
- 3-tert-Butoxybenzaldehyde (CAS 64859-36-5)
- (R)-1-(4-isopropyl-5-methylfuran-2-yl)propan-1-amine (CAS 1000993-69-0)
- 1-(5-Chloro-1-methyl-3-phenyl-1H-pyrazol-4-yl)propan-1-ol (CAS 318497-80-2)
- Lenvatinib Impurity 51 (CAS 417723-07-0)
- N-(4-fluorophenyl)-2-hydrazinyl-2-oxoacetamide (CAS 338395-87-2)
- Methyl 2-amino-2-cyanoacetate 4-methylbenzenesulfonate (CAS 52486-71-2)
- 1-Ethoxy-2,3-difluoro-4-iodobenzene (CAS 144292-42-2)
- (4S)-2-[4-(Trifluoromethyl)phenyl]-1,3-thiazolidine-4-carboxylic acid (CAS 1217522-21-8)
- Semaglutide-d8 Tetratrifluoroacetate (CAS CATO-C4X-222617)
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