1H-Imidazo[1,2-b]pyrazole CAS 251-80-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 251-80-9 |
| Molecular Formula | C5H5N3 |
| Molecular Weight | 107.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1H-Imidazo[1,2-b]pyrazole (CAS 251-80-9) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C5H5N3. Molecular weight: 107.11 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C5H5N3 |
| Molecular Weight | 107.11 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) | 5.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 3 |
Related H Standards
- 1H-Imidazo[1,2-a]imidazole (CAS 251-91-2)
- Imidazo[4,5-c]pyrazole (CAS 251-05-8)
- Imidazo[4,5-d]imidazole (CAS 251-50-3)
- 2H-Imidazo[4,5-d][1,2,3]oxadiazole (CAS 933057-41-1)
- Imidazo[1,2-a]pyridine (CAS 274-76-0)
- 3H-Imidazo[4,5-b]pyridine (CAS 170245-18-8)
- 1H-Imidazo[4,5-b]pyridine (CAS 170245-19-9)
- 4H-Imidazo[4,5-c]pyridine (CAS 272-96-8)
Recommended Standards
- 1H-imidazol-2-ylacetonitrile (CAS 23184-45-4)
- 1-(Prop-2-yn-1-yl)-1h-1,2,4-triazole (CAS 82418-39-1)
- 1H-Imidazole-2-carbonitrile, 5-methyl- (CAS 70631-95-7)
- Menthyl PCA (CAS 64519-44-4)
- Ethyl [1,2,4]Triazolo[1,5-a]pyridine-6-carboxylate (CAS 1043902-87-9)
- 4-Methoxy-6-nitroquinolin-2(1H)-one (CAS 934687-51-1)
- 2-bromo-N-[(4-methoxyphenyl)methyl]-N,3-dimethylbutanamide (CAS 1097825-87-0)
- (2-Amino-4-isobutylthiophen-3-yl)(morpholino)methanone (CAS 1099600-31-3)
- Perindopril EP Impurity B (CAS 95153-31-4)
- D-[Val]10-Semaglutide (CAS CATO-CPTD788630)
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