8-chloropyrazolo[5,1-a]isoquinolin-1-ol CAS 2766427-81-8
| CAS No. | 2766427-81-8 |
| Molecular Formula | C11H19ClN2O |
| Molecular Weight | 230.73 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 8-chloropyrazolo[5,1-a]isoquinolin-1-ol (C11H19ClN2O) contains an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 230.73 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
8-chloropyrazolo[5,1-a]isoquinolin-1-ol (CAS 2766427-81-8) is a high-purity analytical reference standard with the molecular formula C11H19ClN2O and a molecular weight of 230.73 g/mol.
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.
CATO manufactures 8-chloropyrazolo[5,1-a]isoquinolin-1-ol under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C11H19ClN2O |
| Molecular Weight | 230.73 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 2003 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related chloropyrazolo Standards
- 7-chloropyrazolo[1,5-a]quinolin-3-ol (CAS 2766427-72-7)
- ethyl 5-chloropyrazolo[1,5-a]pyridine-3-carboxylate (CAS 886364-13-2)
- ethyl 6-chloropyrazolo[1,5-a]pyrimidine-2-carboxylate (CAS 1005209-44-8)
- ethyl 7-chloropyrazolo[1,5-a]pyrimidine-3-carboxylate (CAS 749216-54-4)
- 8-Chloropyrazolo[1,5-c]quinazoline-5-thiol (CAS 17218-77-8)
- Ethyl 5-Chloropyrazolo[1,5-a]pyrimidine-3-carboxylate (CAS 1224944-77-7)
- Ethyl 5-Chloropyrazolo[1,5-a]pyrimidine-2-carboxylate (CAS 1363405-21-3)
- Ethyl 2-chloropyrazolo[1,5-a]pyrimidine-3-carboxylate (CAS 1394003-65-6)
Recommended Standards
- Endo-(1s)-1,7,7-Trimethylbicyclo[2.2.1]hept-2-yl chloroacetate (CAS 75556-46-6)
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