tert-Butyl 4-(5-nitro-1H-indol-3-yl)-5,6-dihydropyridine-1(2H)-carboxylate CAS 151273-41-5
| CAS No. | 151273-41-5 |
| Molecular Formula | C18H21N3O4 |
| Molecular Weight | 343.38 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
tert-Butyl 4-(5-nitro-1H-indol-3-yl)-5,6-dihydropyridine-1(2H)-carboxylate (CAS 151273-41-5), molecular formula C18H21N3O4 and molecular weight 343.38 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of tert-Butyl 4-(5-nitro-1H-indol-3-yl)-5,6-dihydropyridine-1(2H)-carboxylate (C18H21N3O4) is characterized by a flavonoid core, 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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.
Physical & Chemical Properties
| Molecular Formula | C18H21N3O4 |
| Molecular Weight | 343.38 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 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2000 |
| Nitrogen Atoms | 3 |
Recommended Standards
- 5-(4-Nitrophenyl)-1,3-diphenyl-4,5-dihydro-1H-pyrazole (CAS 15115-37-4)
- 3-(Phenylamino)-2-(2-phenylhydrazinyl)quinazolin-4(3H)-one (CAS 16802-76-9)
- JWH-072 N-propanoic acid metabolite (CAS 1451369-32-6)
- diethyl 2-{[(2,3-dimethyl-6-quinoxalinyl)amino]methylene}malonate (CAS 170948-50-2)
- 2-(Thiomorpholinomethyl)benzaldehyde (CAS 1443306-83-9)
- N2-(4-(Dimethylamino)phenyl)pyridine-2,3-diamine dihydrochloride (CAS 1820735-09-8)
- 5-Bromo-1-methyl-4-oxo-1,4-dihydropyridine-3-carbonitrile (CAS 1708168-15-3)
- 1-(1-(3-(o-Tolyloxy)propyl)-1H-benzo[d]imidazol-2-yl)ethan-1-ol (CAS 615279-94-2)
- Cetrorelix Impurity 25 (CAS CATO-C4X-201425)
- 2-Benzyl-3-(pyrrolidin-1-yl)propan-1-amine dihydrochloride (CAS 1159823-77-4)
- 2-(Cyclopentyloxy)-3-methoxybenzaldehyde (CAS 158429-01-7)
- 4-(Butylamino)picolinamide (CAS 1153325-95-1)
- 6-Hydroxy-4-(trifluoromethyl)isoindolin-1-one (CAS 2847878-83-3)
- Liraglutide(13-31)TFA Salt (CAS CATO-C4X-19929)
Why CATO?
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