1-(4-Bromophenyl)-3-(ethoxycarbonyl)-4,5-dihydro-1h-pyrazole-5-carboxylic acid CAS 1264041-06-6
| CAS No. | 1264041-06-6 |
| Molecular Formula | C13H13BrN2O4 |
| Molecular Weight | 341.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1-(4-Bromophenyl)-3-(ethoxycarbonyl)-4,5-dihydro-1h-pyrazole-5-carboxylic acid (CAS 1264041-06-6) is a high-purity analytical reference standard with the molecular formula C13H13BrN2O4 and a molecular weight of 341.16 g/mol.
The molecular framework of 1-(4-Bromophenyl)-3-(ethoxycarbonyl)-4,5-dihydro-1h-pyrazole-5-carboxylic acid (C13H13BrN2O4) 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 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).
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.
As a certified reference material (CRM), 1-(4-Bromophenyl)-3-(ethoxycarbonyl)-4,5-dihydro-1h-pyrazole-5-carboxylic acid 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 | C13H13BrN2O4 |
| Molecular Weight | 341.16 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 |
| 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 | Br-containing |
| Nitrogen Atoms | 2 |
Related Bromophenyl Standards
- (4-Bromophenyl)diphenylphosphine (CAS 734-59-8)
- 2-(3-Bromophenyl)-6-(trifluoromethyl)imidazo[1,2-a]pyridine (CAS 944580-87-4)
- 2-(3-Bromophenyl)-7-(trifluoromethyl)imidazo[1,2-a]pyridine (CAS 944580-93-2)
- Ethyl 7-(4-bromophenyl)-4,7-dioxoheptanoate (CAS 1208318-08-4)
- 1-({[(3-bromophenyl)methyl]carbamoyl}amino)cyclopentane-1-carboxylic acid (CAS 954581-24-9)
- 1-(4-Bromophenyl)-3-(p-tolyl)-1H-pyrazole-4-carbaldehyde (CAS 618098-52-5)
- 3-(4-Bromophenyl)-1-(p-tolyl)-1H-pyrazole-4-carbaldehyde (CAS 618098-44-5)
- 3-(4-Bromophenyl)-1-methyl-5-phenylpyridazin-4(1H)-one (CAS 59591-36-5)
Recommended Standards
- N-Boc-3-bromo-6-nitroindole (CAS 1246471-29-3)
- 6-Bromo-[2,2'-biindolinylidene]-3,3'-dione (CAS 139582-54-0)
- Chloroprocaine impound 7 (CAS CATO-C4X-32867)
- 3-(1H-1,3-Benzodiazol-2-yl)-6-bromo-2H-chromen-2-one (CAS 143376-72-1)
- N-(3,5-Dimethylphenyl)-5-ethoxy-1-methyl-4-oxo-1,4-dihydropyridine-2-carboxamide (CAS 1105221-04-2)
- 3-(3-(Trifluoromethoxy)phenyl)prop-2-yn-1-ol (CAS 1093173-10-4)
- 2-(2-(Cyclopropylamino)-2-oxoethoxy)benzamide (CAS 878575-52-1)
- 4-Chloro-6-(methylthio)pyrimidine-5-carbonitrile (CAS 150807-96-8)
- 1-BROMO-4-(TRIFLUOROMETHYL)BENZENE 1-BROMO-4-(TRIFLUOROMETHYL)BENZOLE 1-Bromo-4-(trifluoromethoxy)benzene 4-(TRIFLUOROMETHOXY)BROMOBENZENE 4-(TRIFLUOROMETHYL)BROMOBENZENE 4-BROMO(TRIFLUOROMETHOXY)BENZENE 4-BROMO-1-TRIFLUOROMETHYLBENZENE 4-BROMO-A,A,A-TRIFLUOROTOLUENE 4-BROMO-ALPHA,ALPHA,ALPHA-TRIFLUOROANISOLE 4-BROMO-ALPHA,ALPHA,ALPHA-TRIFLUOROTOLUENE 4-BROMOA-TRIFLUOROMETHOXYBENZENE 4-BROMOBENZOTRIFLUORIDE 4-BROMOTRIFLUOROTOLUENE 407-14-7 AS00244 BENZENE, 1-BROMO-4-(TRIFLUOROMETHYL)- P-BROMO-ALPHA,ALPHA,ALPHA-TRIFLUOROTOLUENE P-BROMOBENZOTRIFLUORIDE P-BROMOTRIFLUOROMETHOXYBENZENE P-BROMOTRIFLUOROMETHYLBENZENE P-TRIFLUOROMETHOXY BROMOBENZENE TIMTEC-BB SBB006606 (CAS 407-14-7)
- 1-(Methoxymethyl)cyclopentanecarboxamide (CAS 1142211-23-1)
- Methyl 3-(aminomethyl)-4-hydroxybenzoate hydrochloride (CAS 1172517-39-3)
- 5-Fluoro-6-methyl-1,3-benzoxazol-2-amine (CAS 1820618-90-3)
- n-[(oxolan-2-yl)methyl]-1-(propan-2-yl)piperidin-4-amine (CAS 1021069-68-0)
- Macrocyclic Peptide flaviviridae Viruses InhibitorDISCONTINUED (CAS 1510841-23-2)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com