7H-Isoxazolo[4,5-c]pyrazolo[1,2-a]pyridazine CAS 121014-31-1
| CAS No. | 121014-31-1 |
| Molecular Formula | C8H7N3O |
| Molecular Weight | 161.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
7H-Isoxazolo[4,5-c]pyrazolo[1,2-a]pyridazine (C8H7N3O) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. Its physicochemical properties are representative of its class; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
7H-Isoxazolo[4,5-c]pyrazolo[1,2-a]pyridazine (CAS 121014-31-1), molecular formula C8H7N3O and molecular weight 161.16 g/mol, is a CATO reference standard with documented purity and traceability.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C8H7N3O |
| Molecular Weight | 161.16 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 |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Nitrogen Atoms | 3 |
Related H Standards
- Isoxazolo[4',5':3,4]benzo[1,2-c][1,2,5]oxadiazole (CAS 126877-68-7)
- Isoxazolo[5',4':3,4]benzo[1,2-c][1,2,5]oxadiazole (CAS 133818-22-1)
- Isoxazolo[4,5-e][1,2,4]triazolo[4,3-c]pyrimidine (CAS 80161-12-2)
- 1-(Isoxazolo[3,4-b]pyridin-3-yl)ethanone (CAS 14133-18-7)
- 2H-Isoxazolo[5,4-d]azonine (CAS 154099-32-8)
- 1-(Isoxazolo[5,4-b]pyridin-3-yl)ethanone (CAS 1785305-56-7)
- 2H-Isoxazolo[5,4-d]pyrazolo[3,4-b]pyridine (CAS 106990-55-0)
- 1H-Isoxazolo[3,4-d]pyrazolo[3,4-b]pyridine (CAS 107457-74-9)
Recommended Standards
- 1h-Indazole-4-carboxamide (CAS 1203579-36-5)
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- 1-Methyl-1H-benzo[d][1,2,3]triazole-7-carbaldehyde (CAS 120321-75-7)
- 2-(1H-Imidazol-1-yl)pyrimidin-5-amine (CAS 1211539-01-3)
- 4-((4-Methylthiazol-2-yl)amino)-4-oxobut-2-enoic acid (CAS 42574-75-4)
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- Amino-PEG4-hydrazide-Boc (CAS 1263047-17-1)
- Elacestrant impurity 10 (CAS CATO-C4X-32330)
- 4-Chloro-5-isopropyl-6-(5-methyl-[1,3,4]oxadiazol-2-yl)-pyrrolo[2,1-f][1,2,4]triazine 651753-54-7 (CAS 651753-54-7)
- 6-Chloro-2-methylimidazo[1,2-a]pyrazine-3-carboxylic acid (CAS 1553646-86-8)
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