4-Chlorobenzo[c]isoxazole CAS 150079-72-4
| CAS No. | 150079-72-4 |
| Molecular Formula | C7H4ClNO |
| Molecular Weight | 153.57 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 4-Chlorobenzo[c]isoxazole is closely related to an amide group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 4-Chlorobenzo[c]isoxazole (CAS 150079-72-4), a certified reference material (molecular formula C7H4ClNO, MW 153.57 g/mol) for analytical method development and quality control.
Structurally, 4-Chlorobenzo[c]isoxazole (C7H4ClNO) contains an amide group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 153.57 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 4-Chlorobenzo[c]isoxazole 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 | C7H4ClNO |
| Molecular Weight | 153.57 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 methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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.) | 1999 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Chlorobenzo Standards
- 4-Chlorobenzo[d]isoxazole (CAS 1260783-81-0)
- 6-Chlorobenzo[c]isoxazole (CAS 14313-60-1)
- 4-Chlorobenzo[d]oxazole (CAS 943443-12-7)
- 5-Chlorobenzo[c]isoxazole (CAS 4596-92-3)
- 5-Chlorobenzo[d]isoxazole (CAS 39900-62-4)
- 6-Chlorobenzo[d]isoxazole (CAS 39835-07-9)
- 6-Chlorobenzo[d]oxazole (CAS 227197-72-0)
- 7-Chlorobenzo[d]isoxazole (CAS 65685-54-3)
Recommended Standards
- 3-Chloroimidazo[1,2-a]pyrimidine (CAS 143696-95-1)
- 7-Chloro-[1,2,4]triazolo[4,3-a]pyridine (CAS 1505568-26-2)
- 2-(5-Chloropyrazin-2-yl)acetonitrile (CAS 1433707-71-1)
- 6-chloro-[1,2,3]triazolo[1,5-a]pyridine (CAS 1513490-87-3)
- 57933-28-5 5976AE 8-Methyl-2,3,4,5-tetrahydro-1H-pyrido-[4,3-b]indole hydrochloride C12H15ClN2 (CAS 57933-28-5)
- N-(4-(7,7-Dimethyl-6,8-dioxa-2-azaspiro[3.5]nonane-2-carbonyl)phenyl)acetamide (CAS 1396879-12-1)
- tert-Butyl 9-(4-amino-2-methoxyphenyl)-3,9-diazaspiro[5.5]undecane-3-carboxylate (CAS 1453211-89-6)
- 2-(2-Oxo-1,2-dihydroquinolin-3-yl)acetic acid (CAS 53244-92-1)
- 4-(2,4-Dimethylphenyl)-2,2-dimethyl-4-oxobutanoic acid (CAS 951894-22-7)
- Methyl 5-(2-fluorophenyl)-1H-pyrrole-3-carboxylate (CAS 1240949-59-0)
- 4-Methoxy-o-phenylenediamine dihydrochloride (CAS 59548-39-9)
- N-(2-(3,3,3-Trifluoropropoxy)benzyl)propan-2-amine (CAS 1479073-10-3)
- 3-Methoxycatechol (CAS 934-00-9)
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Why CATO?
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