4-Cyano-1H-pyrazole-3-carboxylic acid CAS 1045733-76-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1045733-76-3 |
| Molecular Formula | C5H3N3O2 |
| Molecular Weight | 137.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
High-purity 4-Cyano-1H-pyrazole-3-carboxylic acid (CAS 1045733-76-3) pharmaceutical standards reference standard. Molecular formula: C5H3N3O2. Molecular weight: 137.10 g/mol. Produced by CATO, one of China's leading reference material manufacturers, with COA documentation and global shipping.
Physical & Chemical Properties
| Molecular Formula | C5H3N3O2 |
| Molecular Weight | 137.10 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| 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.) | 1988 |
| Nitrogen Atoms | 3 |
Related Cyano Standards
- 5-Cyano-1H-imidazole-2-carboxylic acid (CAS 1026882-55-2)
- 3-Cyano-1H-pyrazole-5-carboxylic acid (CAS 1187361-13-2)
- 4-Cyano-1H-1,2,3-triazole-5-carboxamide (CAS 57613-19-1)
- 4-Cyano-1H-imidazole-5-carboxylic acid (CAS 56745-98-3)
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Recommended Standards
- furan-3-carbonyl azide (CAS 113222-54-1)
- (Prop-2-yn-1-yl)(2,2,2-trifluoroethyl)amine (CAS 1020931-14-9)
- Glyceryl Trinitrate Solution EP Impurity C (CAS 620-12-2)
- 5-Chloro-2-iodo-3-methoxypyridine (CAS 1261634-88-1)
- 2,2,2-Trifluoroethyl n-(2-methylpropyl)carbamate (CAS 1423034-70-1)
- (E)-4-Hexadecen-6-yne (CAS 74744-51-7)
- 4-(2-Chloro-4-fluorophenoxy)butanenitrile (CAS 24115-21-7)
- (1-Cyanoindolizin-2-yl)methyl carbamimidothioate (CAS 1493110-46-5)
- (1-(Thieno[3,2-d]pyrimidin-4-yl)piperidin-4-yl)methanamine (CAS 937795-94-3)
- Tau Peptide (337-368) (Repeat 4 Domain) trifluoroacetate salt (CAS 330456-27-4)
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