Methyl 4-bromo-5-(3-chlorophenyl)-1h-pyrazole-3-carboxylate CAS 1319143-37-7
| CAS No. | 1319143-37-7 |
| Molecular Formula | C11H8BrClN2O2 |
| Molecular Weight | 315.55 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 315.55 g/mol gives Methyl 4-bromo-5-(3-chlorophenyl)-1h-pyrazole-3-carboxylate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Methyl 4-bromo-5-(3-chlorophenyl)-1h-pyrazole-3-carboxylate (CAS 1319143-37-7), a certified reference material (molecular formula C11H8BrClN2O2, MW 315.55 g/mol) for analytical method development and quality control.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine/bromine substitution, Methyl 4-bromo-5-(3-chlorophenyl)-1h-pyrazole-3-carboxylate is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 315.55 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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), Methyl 4-bromo-5-(3-chlorophenyl)-1h-pyrazole-3-carboxylate 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 | C11H8BrClN2O2 |
| Molecular Weight | 315.55 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 2 |
Related Methyl Standards
- Ethyl 6-bromo-4-chloro-1,5-naphthyridine-3-carboxylate (CAS 1083181-13-8)
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Recommended Standards
- 4-Bromo-1-[(2-chlorophenyl)methyl]-1H-pyrazole-3-carboxylic acid (CAS 1281872-52-3)
- ethyl 6-bromo-2-chloro-1,8-naphthyridine-3-carboxylate (CAS 1330583-62-4)
- 5-Bromo-1-(3-chloro-4-methylphenyl)-1H-pyrazole-4-carboxylic acid (CAS 1399655-44-7)
- 5-(4-Bromo-2-chlorophenoxymethyl)furan-2-carbaldehyde (CAS 438219-24-0)
- 3-[5-(pyridin-4-yl)-1,3,4-oxadiazol-2-yl]propanoic acid (CAS 933685-27-9)
- 2,5-Dioxopyrrolidin-1-yl 6-(2-iodoacetamido)hexanoate (CAS 134759-23-2)
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