5-Methyl-3H-pyrazol-3-one CAS 3206-39-1
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 3206-39-1 |
| Molecular Formula | C4H4N2O |
| Molecular Weight | 96.09 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
High-purity 5-Methyl-3H-pyrazol-3-one (CAS 3206-39-1) pharmaceutical standards reference standard. Molecular formula: C4H4N2O. Molecular weight: 96.09 g/mol. Produced by CATO, one of China's leading reference material manufacturers, with COA documentation and global shipping.
Physical & Chemical Properties
| Molecular Formula | C4H4N2O |
| Molecular Weight | 96.09 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 2 |
Recommended Standards
- 5-Imidazolecarboxaldehyde (CAS 3034-50-2)
- Heptanedial (CAS 53185-69-6)
- 5-Hydroxypyrimidine (CAS 26456-59-7)
- Methyl 4-(5-aminopyridin-2-yl)piperazine-1-carboxylate (CAS 1000334-84-8)
- 5-Ethenyl-2-methoxy-pyridine (CAS 24674-39-3)
- 3,4-dihydro-1H-quinoxalin-2-one (CAS 59564-59-9)
- 1-(2-Fluoro-6-morpholinophenyl)ethan-1-ol (CAS 1156521-32-2)
- trans-Zeatin (CAS 1637-39-4)
- N-Hexadecanoyl-alanine mono sodiumsalt (CAS 67395-94-2)
- D-Pro31-Tirzepatide (CAS CATO-CPTD788905)
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