1-Isopropyl-3-(5-nitrofuran-2-yl)-1H-pyrazole-4-carbaldehyde CAS 61619-66-7
| CAS No. | 61619-66-7 |
| Molecular Formula | C11H11N3O4 |
| Molecular Weight | 249.22 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.
CATO supplies 1-Isopropyl-3-(5-nitrofuran-2-yl)-1H-pyrazole-4-carbaldehyde (CAS 61619-66-7), a certified reference material (molecular formula C11H11N3O4, MW 249.22 g/mol) for analytical method development and quality control.
1-Isopropyl-3-(5-nitrofuran-2-yl)-1H-pyrazole-4-carbaldehyde (C11H11N3O4) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
As a certified reference material (CRM), 1-Isopropyl-3-(5-nitrofuran-2-yl)-1H-pyrazole-4-carbaldehyde 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 | C11H11N3O4 |
| Molecular Weight | 249.22 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| 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 |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1974 |
| Nitrogen Atoms | 3 |
Related Isopropyl Standards
- 5-Isopropyl-2,4-dioxo-1,2,3,4-tetrahydropyrido[2,3-d]pyrimidine-7-carboxylic acid (CAS 1374408-33-9)
- Isopropyl 6-nitro-1H-indazole-3-carboxylate (CAS 1456070-30-6)
- 3-Isopropyl-5-(4-nitrophenyl)-1,3,4-oxadiazol-2(3H)-one (CAS 62121-05-5)
- Ethyl 7-isopropyl-4-oxo-3,4-dihydropyrrolo[2,1-f][1,2,4]triazine-5-carboxylate (CAS 938191-12-9)
- N-(5-Isopropyl-1,3,4-thiadiazol-2-yl)pyrazine-2-carboxamide (CAS 484039-20-5)
- 1-Isopropyl-3-methylbenzo[4,5]imidazo[1,2-a]pyridine-4-carbonitrile (CAS 571149-58-1)
- 1-Isopropyl-4-(4-nitrophenyl)piperazine (CAS 443914-85-0)
- 4-((2-Isopropyl-6-methylphenyl)amino)-4-oxobutanoic acid (CAS 904797-70-2)
Recommended Standards
- 1,3,5-Trimethyl-2,4-dioxo-1h,2h,3h,4h-pyrido[2,3-d]pyrimidine-7-carboxylic acid (CAS 901864-90-2)
- 2-((3-Methylfuran-2-carboxamido)methyl)furan-3-carboxylic acid (CAS 447431-22-3)
- 1-(4-Methoxy-3-methyl-2-nitrobenzofuran-7-yl)ethanone (CAS 53724-99-5)
- 2-((5-Methylfuran-2-carboxamido)methyl)furan-3-carboxylic acid (CAS 505066-96-6)
- (Z)-2-Methyl-4-(thiophen-3-ylmethylene)oxazol-5(4H)-one (CAS 89000-97-5)
- (2-Bromo-5,5-dimethylcyclohex-1-en-1-yl)methanol (CAS 1053265-67-0)
- Erythromycin B rearranged derivatives (CAS CATO-C4X-100170)
- 3-((3-Fluorobenzyl)thio)-5-(trifluoromethyl)-4H-1,2,4-triazole (CAS 1706434-22-1)
- Tert-butyl (S)-2-((isopropylamino)methyl)pyrrolidine-1-carboxylate (CAS 1354017-22-3)
- 3-(5-(4-Bromophenyl)furan-2-yl)-N-(3-methoxyphenyl)propanamide (CAS 853330-85-5)
- 4-Cyclopropaneamido-2-fluorobenzene-1-sulfonyl chloride (CAS 926201-78-7)
- Rizatriptan EP Impurity I HCl (CAS 144034-84-4 (free base))
- 7-Chloro-3-(methoxymethoxy)-8-((triisopropylsilyl)ethynyl)naphthalen-1-yl trifluoromethanesulfonate (CAS 2771460-19-4)
- Peptide 439 (CAS CATO-CPTD788439)
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