5-Nitro-3-pyrazolecarboxylic acid CAS 198348-89-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 198348-89-9 |
| Molecular Formula | C4H3N3O4 |
| Molecular Weight | 157.08 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-Nitro-3-pyrazolecarboxylic acid (CAS 198348-89-9) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C4H3N3O4. Molecular weight: 157.08 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C4H3N3O4 |
| Molecular Weight | 157.08 g/mol |
| Appearance | Off-white to pale 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, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 2013 |
| Nitrogen Atoms | 3 |
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Recommended Standards
- 5-Nitrofuran-3-carboxylic acid (CAS 770-07-0)
- 5-Nitroimidazole-4-carboxylic Acid (CAS 40507-59-3)
- 4-Hydroxy-2-nitrofuran-3-carbaldehyde (CAS 263144-34-9)
- 1,3-Dimethyl-1h-thieno[2,3-c]pyrazole-5-carboxamide (CAS 1098360-43-0)
- 2-[(Acetylthio)methyl]-3-phenylpropionic Acid (CAS 91702-98-6)
- 2-(2-(3-Formyl-1H-indol-1-yl)acetamido)benzoic acid (CAS 886499-38-3)
- 5-[1-(2-Chlorobenzenesulfonyl)pyrrolidin-2-yl]-3-(4-chlorophenyl)-1,2,4-oxadiazole (CAS 551930-99-5)
- 1-(4-chloro-2-methylphenyl)-2,3-dihydro-1H-1,2,4-triazol-3-one (CAS 42097-63-2)
- 4-(2-(5-Methyl-2-nitro-1H-imidazol-1-yl)ethoxy)-4-oxobutanoic acid (CAS 23571-46-2)
- 3AEEA-Semaglutide(Endo-AEEA-Semaglutide) (CAS CATO-C4X-2226265)
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