(R)-tert-Butyl (4-methyl-1-(1-methyl-4-nitro-1H-pyrazol-5-yl)-6-oxoazepan-4-yl)carbamate CAS 1956437-88-9
| CAS No. | 1956437-88-9 |
| Molecular Formula | C16H25N5O5 |
| Molecular Weight | 367.40 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(R)-tert-Butyl (4-methyl-1-(1-methyl-4-nitro-1H-pyrazol-5-yl)-6-oxoazepan-4-yl)carbamate (CAS 1956437-88-9) is a high-purity analytical reference standard with the molecular formula C16H25N5O5 and a molecular weight of 367.40 g/mol.
(R)-tert-Butyl (4-methyl-1-(1-methyl-4-nitro-1H-pyrazol-5-yl)-6-oxoazepan-4-yl)carbamate (C16H25N5O5) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
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 | C16H25N5O5 |
| Molecular Weight | 367.40 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
| Nitrogen Atoms | 5 |
Recommended Standards
- 4-(((9H-Fluoren-9-yl)methoxy)carbonyl)-1,4-oxazepane-6-carboxylic acid (CAS 1936071-00-9)
- 2,3,9,10-Tetramethoxy-5H-isoquinolino[3,2-a]isoquinolin-8(6H)-one (CAS 19716-59-7)
- 2-[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)oxolan-3-yl]acetic acid (CAS 1935458-78-8)
- (2R,3R)-3-(((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)methyl)tetrahydrofuran-2-carboxylic acid (CAS 2140264-04-4)
- rac-[(1R,2S)-2-(propan-2-yl)cyclopropyl]methanamine hydrochloride (CAS 1955474-06-2)
- 4-(4-Fluoro-3-methylbenzyl)piperidine (CAS 1017150-93-4)
- 2,6-dimethyl-1H-pyrrolo[2,3-b]pyridine (CAS 1255099-47-8)
- 2-(Difluoromethyl)-5-methyl-3-nitropyridine-6-acetonitrile (CAS 1805066-85-6)
- 6-Fluoroisatin (CAS 324-03-8)
- (3R,5S)-3-hydroxy-5-methylpyrrolidin-2-one (CAS 355143-51-0)
- 6,8-Difluorospiro[chroman-2,1'-cyclobutan]-4-one (CAS 934554-68-4)
- 1-(6-Mercaptobenzo[d]oxazol-2-yl)ethanone (CAS 1806588-03-3)
- 4-Chlorophenylamine-13C6 (CAS 89059-39-2)
- Endo-Gly29-Tirzepatide (CAS CATO-CPTD788685)
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