1-Hydroxy-3-nitro-1H-pyrazole-4-carbonitrile CAS 181585-88-6
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 181585-88-6 |
| Molecular Formula | C4H2N4O3 |
| Molecular Weight | 154.08 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1-Hydroxy-3-nitro-1H-pyrazole-4-carbonitrile (CAS 181585-88-6) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C4H2N4O3. Molecular weight: 154.08 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C4H2N4O3 |
| Molecular Weight | 154.08 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) | 6.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 2008 |
| Nitrogen Atoms | 4 |
Related Hydroxy Standards
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- 6-Hydroxy-5-methylpyrimidine-4-carboxylic acid (CAS 1159010-94-2)
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- 3-Hydroxy-2-methyl-4-nitropyridine (CAS 15128-83-3)
- 3-Hydroxy-2-methyl-6-nitropyridine (CAS 15128-84-4)
Recommended Standards
- Dimethyl Phosphate-d6 (Major) Sodium Salt (CAS 157487-94-0)
- [1,2,5]Oxadiazolo[3,4-b]pyrazine-5,6(1H,3H)-dione (CAS 24294-89-1)
- 6-ethoxy-2,4-dimethyl-quinoline 6-ethoxy-2,4-dimethylquinoline 665-31-6 A835483 (CAS 665-31-6)
- (6-Bromo-2-fluoro-3-formylphenyl)boronic acid (CAS 1315340-55-6)
- 7-(((2-Aminoethyl)thio)methyl)-5h-[1,3,4]thiadiazolo[3,2-a]pyrimidin-5-one dihydrochloride (CAS 1245569-87-2)
- 2-Fluoro-N-(4-iodophenyl)benzamide (CAS 304882-39-1)
- 6-Bromo-5-cyano-2-(difluoromethyl)pyridine-3-sulfonamide (CAS 1804912-19-3)
- 4-Chloro-6-oxo-1-(4-phenoxyphenyl)-1,6-dihydropyridazine-3-carbonitrile (CAS 306976-53-4)
- Acetyl Tetrapeptide-5 (CAS 820959-17-9)
- Semaglutide impurity 250 (CAS CATO-C4X-2226250)
Why CATO?
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