1-Ethyl-5-(5-nitrofuran-2-yl)-1H-pyrazole-4-carbaldehyde CAS 61619-63-4
| CAS No. | 61619-63-4 |
| Molecular Formula | C10H9N3O4 |
| Molecular Weight | 235.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 1-Ethyl-5-(5-nitrofuran-2-yl)-1H-pyrazole-4-carbaldehyde (C10H9N3O4) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 235.20 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
1-Ethyl-5-(5-nitrofuran-2-yl)-1H-pyrazole-4-carbaldehyde (CAS 61619-63-4) is a high-purity analytical reference standard with the molecular formula C10H9N3O4 and a molecular weight of 235.20 g/mol.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C10H9N3O4 |
| Molecular Weight | 235.20 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (faint amine-like odor) |
| 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 Ethyl Standards
- 1-Ethyl-3-(5-nitrofuran-2-yl)-1H-pyrazole-4-carbaldehyde (CAS 61619-62-3)
- 1-Methyl-3-(5-nitrofuran-2-yl)-1H-pyrazole-4-carboxamide (CAS 61620-76-6)
- 2-((5-Nitrofuran-2-yl)methoxy)aniline (CAS 88796-65-0)
- (5-Nitrofuran-2-yl)methyl 3-chloropropanoate (CAS 13295-81-3)
- N-(3-(5-Nitrofuran-2-yl)-1H-1,2,4-triazol-5-yl)acetamide (CAS 1704-66-1)
- 1-(E)-(5-nitrofuran-2-yl)methylideneaminoimidazolidine-2,4-dione (CAS 178170-37-1)
- 1-Ethyl-3-(5-nitrofuran-2-yl)-1H-pyrazole-4-carbonitrile (CAS 61620-61-9)
- 3-(5-Nitrofuran-2-yl)-5,6-dihydrothiazolo[2,3-c][1,2,4]triazole (CAS 78205-33-1)
Recommended Standards
- 1-methyl-3-(3-nitrophenyl)imidazolidine-2,4-dione (CAS 83996-81-0)
- 1-Ethyl-2,4-dioxo-1h,2h,3h,4h-pyrido[2,3-d]pyrimidine-6-carboxylic acid (CAS 929975-80-4)
- 1-methyl-3-(4-nitrophenyl)imidazolidine-2,4-dione (CAS 92088-75-0)
- 1-Bromo-4,8-dimethylnonane (CAS 97345-28-3)
- (1H-pyrrolo[3,2-b]pyridin-3-yl)methanamine (CAS 1196145-18-2)
- 5-(1H-Indol-3-ylmethyl)-2,2-dimethylimidazolidin-4-one (CAS 117307-01-4)
- 1-oxaspiro[3.5]nonan-7-ol (CAS 1823584-01-5)
- (5-Bromo-1-methyl-1H-pyrazol-4-yl)methanol (CAS 1415638-13-9)
- 5-(3,4-Dimethylphenoxy)pentanoic acid (CAS 87411-47-0)
- (2-Aminocyclopropyl)methanol (CAS 1314929-43-5)
- 2-Chloro-3-(difluoromethyl)-5-nitropyridine (CAS 1805315-55-2)
- Dodecadecylpyridium bromide (CAS 104-73-4)
- Phenyl(2-(2-(pyrrolidin-1-yl)pyridin-3-yl)piperidin-1-yl)methanone (CAS 1352534-62-3)
- (2S)-2-amino-4-(hydroxymethylphosphinyl)butanoyl-L-alanyl-L-alanine (2S)-2-amino-4-[hydroxy(methyl)phosphinoyl]butyryl-L-alanyl-L-alanine 2-Amino-4-(methylphosphino)butyrylalanylalanine 35597-43-4 Antibiotic SF 1293 Bialaphos CHEBI:3088 L-phosphinothricyl-L-alanyl-L-alanine N-{(2S)-2-amino-4-[hydroxy(methyl)phosphoryl]butanoyl}-L-alanyl-L-alanine PTT Phosphinothricylalanylalanine bilanafos gamma-(Hydroxymethylphosphinyl)-L-alpha-aminobutyryl-L-alanyl-L-alanine phosphinothricin tripeptide (CAS 35597-43-4)
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