5-Nitro-1H-1,2,4-triazole-3-carboxylic acid CAS 21732-99-0
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 21732-99-0 |
| Molecular Formula | C3H2N4O4 |
| Molecular Weight | 158.07 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-Nitro-1H-1,2,4-triazole-3-carboxylic acid (CAS 21732-99-0) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C3H2N4O4. Molecular weight: 158.07 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C3H2N4O4 |
| Molecular Weight | 158.07 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.) | 1963 |
| Nitrogen Atoms | 4 |
Related Nitro Standards
- 5-Nitro-1H-1,2,3-triazole-4-carboxylicacid (CAS 145769-54-6)
- 5-Nitro-2H-1,2,3-triazole-4-carboxylic acid (CAS 524036-05-3)
- 2-(3-Nitro-1h-1,2,4-triazol-1-yl)ethan-1-ol (CAS 105958-72-3)
- 2-(5-Nitro-1H-pyrazol-1-yl)ethan-1-ol (CAS 1026867-48-0)
- (1-Methyl-4-nitro-1H-pyrazol-3-yl)methanol (CAS 1201935-82-1)
- (1-Methyl-3-nitro-1H-pyrazol-5-yl)methanol (CAS 1227210-46-9)
- (1-Methyl-5-nitro-1H-pyrazol-3-yl)methanol (CAS 1260659-40-2)
- (1-Methyl-2-nitro-1H-imidazol-4-yl)methanol (CAS 50441-07-1)
Recommended Standards
- 3,5-Dinitropyrazole (CAS 38858-89-8)
- 2,4-Dinitro-1H-imidazole (CAS 5213-49-0)
- (R)-4,4,4-Trifluoro-3-hydroxybutanoic Acid (CAS 108211-36-5)
- N-[(4-tert-Butylphenyl)methoxy]thian-4-imine (CAS 294853-32-0)
- 5-((((Tetrahydrofuran-2-yl)methyl)amino)methyl)furan-2-carboxylic acid (CAS 944894-73-9)
- 1,7-Dimethyl-3,4-dihydroisoquinoline (CAS 33456-86-9)
- 4-Fluoro-1H-indole-5-carboxylic acid (CAS 908600-72-6)
- 5-[(Imidazol-1-yl)methyl]benzene-1,3-dicarboxylic acid (CAS 1393930-96-5)
- Faropenem Impurity 25 (CAS CATO-C4X-128925)
- Tirzepatide Impurity 48 (CAS CATO-C4X-324048)
Why CATO?
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