tert-Butyl 6,7-dimethyl-4-oxospiro[chroman-2,4'-piperidine]-1'-carboxylate CAS 1013333-61-3
| CAS No. | 1013333-61-3 |
| Molecular Formula | C20H27NO4 |
| Molecular Weight | 345.43 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.
tert-Butyl 6,7-dimethyl-4-oxospiro[chroman-2,4'-piperidine]-1'-carboxylate (CAS 1013333-61-3), molecular formula C20H27NO4 and molecular weight 345.43 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, tert-Butyl 6,7-dimethyl-4-oxospiro[chroman-2,4'-piperidine]-1'-carboxylate (C20H27NO4) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 345.43 g/mol, it falls into the moderately-high-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
Physical & Chemical Properties
| Molecular Formula | C20H27NO4 |
| Molecular Weight | 345.43 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1988 |
| Nitrogen Atoms | 1 |
Recommended Standards
- Oxomemazine impurity 1 (CAS CATO-C4X-29531)
- Tert-butyl 5,6-dimethoxyspiro[indene-1,4'-piperidine]-1'-carboxylate (CAS 1026372-06-4)
- Timolol Impurity 28 (CAS CATO-C4X-149628)
- N-[4-(2-Ethoxyethoxy)benzyl]-3-(2-methoxyethoxy)aniline (CAS 1040686-61-0)
- tert-Butyl N-[(2z)-2-(hydroxyimino)-2-(4-methylphenyl)ethyl]carbamate (CAS 912762-60-8)
- 6-(2H-Benzo[e][1,3]oxazin-3(4H)-yl)-N2,N2-bis(3-(triethoxysilyl)propyl)-1,3,5-triazine-2,4-diamine (CAS CATO-CIM-105735)
- 3-(Trifluoromethyl)-[1,2,4]triazolo[3,4-a]isoquinoline (CAS 27022-50-0)
- Bolandiol (CAS 19793-20-5)
- 1-[2,6-Dichloro-4-(fluoromethyl)phenyl]-3-methyl-1H-pyrazole-5-carboxylicacidethylester (CAS 259243-71-5)
- Sitosterol-25,26,26,26,27,27,27-d (CAS 5779-62-4)
- 3-(Dimethylamino)propyl ethyl carbonate (CAS 92671-74-4)
- 4-(5-Chlorothiophen-2-yl)-1-isopropylpiperidin-4-ol (CAS 1443310-77-7)
- 1-Iodo-2-(methoxymethyl)benzene (CAS 90003-91-1)
- Semaglutide impurity 269 (CAS CATO-C4X-2226269)
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