1-[(4-Bromophenyl)methyl]-4-nitro-1h-pyrazole CAS 333311-66-3
| CAS No. | 333311-66-3 |
| Molecular Formula | C10H8BrN3O2 |
| Molecular Weight | 282.09 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 282.09 g/mol gives 1-[(4-Bromophenyl)methyl]-4-nitro-1h-pyrazole distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 1-[(4-Bromophenyl)methyl]-4-nitro-1h-pyrazole (CAS 333311-66-3), a certified reference material (molecular formula C10H8BrN3O2, MW 282.09 g/mol) for analytical method development and quality control.
The molecular framework of 1-[(4-Bromophenyl)methyl]-4-nitro-1h-pyrazole (C10H8BrN3O2) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, bromine 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).
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), 1-[(4-Bromophenyl)methyl]-4-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 | C10H8BrN3O2 |
| Molecular Weight | 282.09 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.) | 2025 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 3 |
Related Bromophenyl Standards
- Methyl 5-(2-bromophenyl)-1,2-oxazole-3-carboxylate (CAS 1053657-05-8)
- 2-(2-Bromophenyl)-5-methyloxazole-4-carboxylic acid (CAS 1140626-84-1)
- Methyl 2-(4-bromophenyl)oxazole-5-carboxylate (CAS 1206984-00-0)
- 1-[(3-Bromophenyl)methyl]-3-nitro-1h-pyrazole (CAS 1240567-36-5)
- 1-[(2-Bromophenyl)methyl]-3-nitro-1h-pyrazole (CAS 1240567-60-5)
- 1-[(2-Bromophenyl)methyl]-4-nitro-1h-pyrazole (CAS 1240568-81-3)
- 5-(3-Bromophenyl)-1-methyl-1H-1,2,4-triazole-3-carboxylic acid (CAS 1373223-21-2)
- 5-(4-Bromophenyl)-1-methyl-1H-1,2,4-triazole-3-carboxylic acid (CAS 1373223-59-6)
Recommended Standards
- 1-[(4-Bromophenyl)methyl]-3-nitro-1h-pyrazole (CAS 957320-40-0)
- 1-Bromo-5-methoxyisoquinoline-3-carboxylic acid (CAS 2137836-19-0)
- 1-(6-Bromo-2,4-dihydroxy-quinolin-3-yl)-ethanone (CAS 79075-05-1)
- 2-(3-Bromo-2-oxopropyl)-1H-isoindole-1,3(2H)-dione (CAS 6284-26-0)
- N-benzyl-1,3-thiazolidine-4-carboxamide hydrochloride (CAS 1078162-99-8)
- 2-(Oxolan-3-yl)ethan-1-amine (CAS 770709-01-8)
- 1-(4-Methoxy-3-propoxyphenyl)ethan-1-one (CAS 104226-65-5)
- 2-(3,5-Dimethylphenyl)pyridine (CAS 1101187-10-3)
- Methyl 7-methoxy-1H-indole-3-carboxylate (CAS 582319-20-8)
- tert-butyl N-(2-{[2-(2-hydroxyethoxy)ethyl]amino}ethyl)carbamate (CAS 1698597-40-8)
- 3-Ethyl-5-(2-hydroxy-2-phenylethyl)-N-methylisoxazole-4-carboxamide (CAS 62613-73-4)
- 3-aminoquinolin-4-ol hydrochloride (CAS 129377-66-8)
- (R)-2-methyl-1-(4-methyl-3-(trifluoromethyl)phenyl)propan-1-amine (CAS 1213972-25-8)
- Semaglutide Impurity 128 (CAS 2490269-78-6)
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