4-Hydroxy-2,2,6,6-tetramethylpiperidine 1-Oxyl Benzoate Free Radical [Catalyst for Oxidation] CAS 3225-26-1
| CAS No. | 3225-26-1 |
| Molecular Formula | C16H23NO3 |
| Molecular Weight | 277.36 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of 4-Hydroxy-2,2,6,6-tetramethylpiperidine 1-Oxyl Benzoate Free Radical [Catalyst for Oxidation] (C16H23NO3) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
CATO supplies 4-Hydroxy-2,2,6,6-tetramethylpiperidine 1-Oxyl Benzoate Free Radical [Catalyst for Oxidation] (CAS 3225-26-1), a certified reference material (molecular formula C16H23NO3, MW 277.36 g/mol) for analytical method development and quality control.
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.
As a certified reference material (CRM), 4-Hydroxy-2,2,6,6-tetramethylpiperidine 1-Oxyl Benzoate Free Radical [Catalyst for Oxidation] meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C16H23NO3 |
| Molecular Weight | 277.36 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| 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.) | 1957 |
| Nitrogen Atoms | 1 |
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Recommended Standards
- 4-Cyclohexyl-5-(3-fluorophenyl)-2,4-dihydro-3H-1,2,4-triazole-3-thione (CAS 925197-82-6)
- 4-Methyl-2-(3-pyrrolinomethyl) benzophenone (CAS 898762-83-9)
- 4-Cyclohexyl-5-(2-fluorophenyl)-4H-1,2,4-triazole-3-thiol (CAS 522606-86-6)
- 4-Methyl-3-(3-pyrrolinomethyl) benzophenone (CAS 898789-63-4)
- 5-(4-Chlorophenyl)-N-(3-morpholinopropyl)thieno[2,3-d]pyrimidin-4-amine dioxalate (CAS 381687-57-6)
- 1-(2-{[(2-Methylbenzoyl)oxy]imino}cyclohexyl)-2,4-dinitrobenzene (CAS 383147-88-4)
- Lercanidipine Impurity 35 (CAS 1441-58-3)
- Androstenediol-3-acetate-17-benzoate (CAS 5953-63-9)
- (E)-2-(3,5,5-Trimethylcyclohex-2-en-1-ylidene)acetaldehyde (CAS 59820-19-8)
- N-(2-((5-(1H-Imidazol-1-yl)pentyl)oxy)phenyl)acetamide (CAS 88137-95-5)
- Empagliflozin Impurity 55 (CAS CATO-C4X-106555)
- Methyl 4-[(3-azetidinyloxy)methyl]benzoate (CAS 1121587-36-7)
- (2-Chloro-6-fluorophenyl)(cyclohexyl)methanol (CAS 1226067-36-2)
- Semaglutide impurity 29 (CAS 1188328-22-4)
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