1-[(2-Fluorophenyl)methyl]-3-nitro-1h-pyrazole CAS 957354-37-9
| CAS No. | 957354-37-9 |
| Molecular Formula | C10H8FN3O2 |
| Molecular Weight | 221.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
1-[(2-Fluorophenyl)methyl]-3-nitro-1h-pyrazole (CAS 957354-37-9), molecular formula C10H8FN3O2 and molecular weight 221.19 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C10H8FN3O2, 1-[(2-Fluorophenyl)methyl]-3-nitro-1h-pyrazole contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 221.19 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), 1-[(2-Fluorophenyl)methyl]-3-nitro-1h-pyrazole 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 | C10H8FN3O2 |
| Molecular Weight | 221.19 g/mol |
| Appearance | Pale yellow to 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 3 |
Related Fluorophenyl Standards
- 1-[(3-Fluorophenyl)methyl]-4-nitro-1h-pyrazole (CAS 1007477-02-2)
- 2-(1-(4-Fluorophenyl)-1H-1,2,3-triazol-5-yl)acetic acid (CAS 1017423-88-9)
- 1-(3-Fluorophenyl)-5-methyl-1h-1,2,3-triazole-4-carboxylic acid (CAS 1020046-35-8)
- 1-(4-Fluorophenyl)-5-methyl-1H-1,2,4-triazole-3-carboxylic acid (CAS 103058-62-4)
- 1-(4-Fluorophenyl)-N-hydroxy-1H-1,2,3-triazole-4-carboximidamide (CAS 1255791-09-3)
- 2-(3-Fluorophenyl)-5-methyl-2h-1,2,3-triazole-4-carboxylic acid (CAS 1315368-15-0)
- 1-(2-Fluorophenyl)-5-methyl-1H-1,2,3-triazole-4-carboxylic acid (CAS 887035-85-0)
- 1-(3-Fluorophenyl)-5-methyl-1h-1,2,4-triazole-3-carboxylic acid (CAS 948007-65-6)
Recommended Standards
- 1-(4-Fluoro-phenyl)-5-methyl-1H-[1,2,3]triazole-4-carboxylic acid (CAS 887035-89-4)
- 1-[(2-Fluorophenyl)methyl]-4-nitro-1h-pyrazole (CAS 333311-67-4)
- 1-(4-fluorobenzyl)-4-nitro-1H-imidazole (CAS 68019-63-6)
- 1-[(3-Fluorophenyl)methyl]-3-nitro-1h-pyrazole (CAS 957354-40-4)
- N-Benzylbut-3-en-1-amine (CAS 17150-62-8)
- 5-[(4-ethoxyphenyl)sulfamoyl]-2-methylbenzoic acid (CAS 431893-89-9)
- 7-Ethynyl-1-methyl-1H-indole (CAS 1075192-79-8)
- 5-Bromo-7-methyl-1H-indole-4-carbaldehyde (CAS 1628640-25-4)
- N-(2-chlorophenyl)-1-methylpiperidin-4-amine (CAS 416882-08-1)
- 5-Bromo-2-(tetrahydro-2H-pyran-2-ylmethoxy)aniline (CAS 946699-99-6)
- 3,5-Dimethyl-1,4-oxathiane-2,6-dione (CAS 855398-78-6)
- 4-N-Propylbenzenesulfonyl chloride (CAS 146949-07-7)
- 4-Hydroxy-3-imino-1-oxidoquinoxalin-1-ium-2-carbonitrile (CAS 1177429-33-2)
- C-Peptide 1 (rat) (CAS 41475-27-8)
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