5-Chloro-2,3-dihydro-1H-indazol-3-one CAS 7364-28-5
| CAS No. | 7364-28-5 |
| Molecular Formula | C7H5ClN2O |
| Molecular Weight | 168.58 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 168.58 g/mol gives 5-Chloro-2,3-dihydro-1H-indazol-3-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
5-Chloro-2,3-dihydro-1H-indazol-3-one (CAS 7364-28-5), molecular formula C7H5ClN2O and molecular weight 168.58 g/mol, is a CATO reference standard with documented purity and traceability.
5-Chloro-2,3-dihydro-1H-indazol-3-one (C7H5ClN2O) contains an amide group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point; 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 5-Chloro-2,3-dihydro-1H-indazol-3-one 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 | C7H5ClN2O |
| Molecular Weight | 168.58 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1959 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
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Recommended Standards
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- 1-tert-Butyl 4-ethyl 4-cyanopiperidine-1,4-dicarboxylate (CAS 1016258-66-4)
- 5-Oxo-1-(thiophen-2-ylmethyl)pyrrolidine-2-carboxylic acid (CAS 147648-56-4)
- 4-Amino-6-hydroxypyrimidine-2-carboxylic acid (CAS 5177-21-9)
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