N-(1-Oxyl-2,2,6,6-tetramethyl-4-piperidinyl)maleimide CAS 15178-63-9
| CAS No. | 15178-63-9 |
| Molecular Formula | C13H19N2O3 |
| Molecular Weight | 251.30 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
N-(1-Oxyl-2,2,6,6-tetramethyl-4-piperidinyl)maleimide (CAS 15178-63-9), molecular formula C13H19N2O3 and molecular weight 251.30 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of N-(1-Oxyl-2,2,6,6-tetramethyl-4-piperidinyl)maleimide (C13H19N2O3) 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 the protonation state of its nitrogen-containing groups, 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C13H19N2O3 |
| Molecular Weight | 251.30 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 DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1961 |
| Nitrogen Atoms | 2 |
Related N Standards
- 1-Oxyl-2,2,5,5-tetramethyl-delta3-(methanesulfonyloxymethyl)pyrroline (CAS 76893-27-1)
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- (-)-(1-Oxyl-2,2,5,5-tetramethylpyrrolidin-3-yl)methyl Methanethiosulfonate (CAS 681034-15-1)
- (+)-(1-Oxyl-2,2,5,5-tetramethylpyrrolidin-3-yl)methyl Methanethiosulfonate (CAS 681034-14-0)
- (1-Oxyl-2,2,5,5-tetramethylpyrrolidin-3-yl) Methyl Methaneth (CAS 201403-46-5)
- (1-Oxyl-2,2,3,5,5-pentamethyl-∆3-pyrroline-3-methyl) Methanethiosulfonate (CAS 339072-96-7)
- (1-Oxyl-2,2,5,5-tetramethyl-3-pyrroline-3-methyl) Methanethiosulfonate-d15 (CAS 384342-57-8)
- (1-Oxyl-2,2,5,5-tetramethyl-3-pyrroline-3-methyl) Methanethiosulfonate 15N,d15 (CAS 384342-58-9)
Recommended Standards
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- methyl 3-fluoro-1-[(1R)-1-phenylethyl]pyrrolidine-3-carboxylate (CAS 1461698-11-2)
- 3-(2,3-Dihydrobenzo[b]thiophene-3-carboxamido)propanoic acid (CAS 1524249-64-6)
- 6-Hydroxypyrimidine-4-carbaldehyde (CAS 98136-87-9)
- (2-Methoxybenzyl)(2-pyridinylmethyl)amine hydrobromide (CAS 1609403-53-3)
- Levofloxacin Impurity 16 (CAS 54783-72-1)
- Tos-PEG5-CH2COOtBu (CAS 1949793-62-7)
- 3-(4-Chlorophenoxy)propan-1-ol (CAS 18673-04-6)
- 5-Hydroxy-3,7-dimethoxy-1,4-phenanthraquinone 82526-36-1 (CAS 82526-36-1)
- 2-[(Butan-2-yl)amino]acetic acid (CAS 58695-42-4)
- (Z)-Hexadec-3-enoic acid (CAS 75730-20-0)
- 4-Carboxyphenylacetic Acid (CAS 501-89-3)
- Semaglutide Impurity 129 (CAS 2490269-79-7)
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