5-(4-Nitrophenyl)-1h-pyrazole-4-carboxylic acid CAS 35581-31-8
| CAS No. | 35581-31-8 |
| Molecular Formula | C10H7N3O4 |
| Molecular Weight | 233.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-(4-Nitrophenyl)-1h-pyrazole-4-carboxylic acid (C10H7N3O4) 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
5-(4-Nitrophenyl)-1h-pyrazole-4-carboxylic acid (CAS 35581-31-8) is a high-purity analytical reference standard with the molecular formula C10H7N3O4 and a molecular weight of 233.18 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.
CATO manufactures 5-(4-Nitrophenyl)-1h-pyrazole-4-carboxylic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C10H7N3O4 |
| Molecular Weight | 233.18 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1967 |
| Nitrogen Atoms | 3 |
Related Nitrophenyl Standards
- 1-(2-Nitrophenyl)-1h-pyrazole-3-carboxylic acid (CAS 1006442-69-8)
- 1-(2-Nitrophenyl)-1h-pyrazole-4-carboxylic acid (CAS 1006952-14-2)
- 1-(3-Nitrophenyl)-1h-pyrazole-3-carboxylic acid (CAS 1152836-50-4)
- 1-(2-Nitrophenyl)imidazole-4-carboxylic acid (CAS 1272840-24-0)
- 5-(3-Nitrophenyl)furan-2-carboxylic acid (CAS 13130-13-7)
- 5-(3-Nitrophenyl)-1H-pyrazole-3-carboxylic acid (CAS 1557038-82-0)
- 5-(4-Nitrophenyl)-1H-pyrazole-3-carboxylic acid (CAS 189083-63-4)
- 1-(4-Nitrophenyl)-1h-pyrazole-3-carboxylic acid (CAS 19532-43-5)
Recommended Standards
- 5-(4-Nitrophenoxy)furan-2-carbaldehyde (CAS 62427-28-5)
- 5,6-Dihydroxy-2-pyridin-2-yl-pyrimidine-4-carboxylic acid (CAS 766557-40-8)
- 5-(3-Nitrophenyl)-1h-pyrazole-4-carboxylic acid (CAS 448187-56-2)
- 6-Methyl-8-nitro-4-oxo-4H-chromene-3-carbaldehyde (CAS 879559-54-3)
- 6-Chloro-N-(cyclopropylmethyl)pyrazine-2-carboxamide (CAS 1695658-67-3)
- 5-Ethyl-2-methylpyridine Borane (CAS 1014979-56-6)
- 4-(1,3-Dioxo-1H-benzo[de]isoquinolin-2(3H)-yl)-N-(2-methoxyphenyl)butanamide (CAS 301157-02-8)
- Methyl 3-bromo-5-cyano-4-hydroxybenzoate (CAS 1805099-18-6)
- 4-(benzyloxy)-2-hydroxy-3-methylbenzaldehyde (CAS 1008450-80-3)
- Vonoprazan Impurity 232 (CAS CATO-C4X-1020232)
- 5-[(propan-2-yl)amino]-1,3,4-thiadiazole-2-thiol (CAS 750608-54-9)
- 1-(3-Bromopropyl)-4-isopropoxybenzene (CAS 1344302-79-9)
- 3-Methyl-2-Phenoxyaniline (CAS 60287-68-5)
- DAPK Substrate Peptide (CAS 386769-53-5)
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