3-(1H-Pyrazol-3-yl)propiolic acid CAS 1927873-40-2
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1927873-40-2 |
| Molecular Formula | C6H4N2O2 |
| Molecular Weight | 136.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-(1H-Pyrazol-3-yl)propiolic acid (CAS 1927873-40-2) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C6H4N2O2. Molecular weight: 136.11 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C6H4N2O2 |
| Molecular Weight | 136.11 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 |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
| Nitrogen Atoms | 2 |
Related H Standards
- 5-(1H-Pyrazol-1-yl)-2H-tetrazole (CAS 1013759-52-8)
- 3-(1H-pyrazol-1-yl)cyclobutan-1-one (CAS 1704377-50-3)
- 4-(1H-Pyrazol-4-yl)but-3-yn-1-ol (CAS 175474-15-4)
- 3-(1h-Pyrazol-1-yl)butanenitrile (CAS 1006348-47-5)
- 4-(1H-pyrazol-4-yl)butanenitrile (CAS 84302-84-1)
- 5-(1H-Pyrazol-4-yl)oxazole (CAS 1936036-55-3)
- 5-(1H-Pyrazol-3-yl)oxazole (CAS 84978-70-1)
- 1-(5-methyl-pyraZol-1-yl)-propan-2-one (CAS 1004643-66-6)
Recommended Standards
- Tetrazolo[1,5-b]pyridazin-6-amine (CAS 19195-43-8)
- 4H,4aH-furo[3,2-d]pyrimidin-4-one (CAS 1935964-57-0)
- [1,2,4]Triazolo[1,5-a]pyrazin-5-ol (CAS 1823920-17-7)
- 4-Methyl-3-oxo-4-(1H-1,2,4-triazol-1-yl)pentanenitrile (CAS 320420-58-4)
- 2,3,7-Trimethyl-2H-indazole (CAS 58706-38-0)
- Osimertinib Impurity 117 (CAS CATO-C4X-2045117)
- N-Benzyl-3-(2-sulfanylidene-2,3-dihydro-1H-imidazol-1-yl)benzamide (CAS 1146290-00-7)
- 7-Bromo-4H-benzo[b]imidazo[1,2-d][1,4]oxazine-2-carbaldehyde (CAS 2088169-44-0)
- 5-[2-(3-methylbutanamido)ethyl]thiophene-2-sulfonyl chloride (CAS 1016743-90-0)
- Semaglutide Impurity 143 (CAS CATO-C4X-2226143)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 13829788188 / jacky.chen@cato-chem.com