(2R)-2-tert-Butoxycarbonylamino-pent-4-enoic acid ethyl ester CAS 149117-85-1
| CAS No. | 149117-85-1 |
| Molecular Formula | C12H21NO4 |
| Molecular Weight | 243.30 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including (2R)-2-tert-Butoxycarbonylamino-pent-4-enoic acid ethyl ester.
(2R)-2-tert-Butoxycarbonylamino-pent-4-enoic acid ethyl ester (CAS 149117-85-1), molecular formula C12H21NO4 and molecular weight 243.30 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C12H21NO4, (2R)-2-tert-Butoxycarbonylamino-pent-4-enoic acid ethyl ester contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 243.30 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
As a certified reference material (CRM), (2R)-2-tert-Butoxycarbonylamino-pent-4-enoic acid ethyl ester 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 | C12H21NO4 |
| Molecular Weight | 243.30 g/mol |
| Appearance | 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 methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1999 |
| Nitrogen Atoms | 1 |
Recommended Standards
- 2-((Tert-butoxycarbonyl)amino)-4-cyclopropylbutanoic acid (CAS 1490336-75-8)
- N-Boc-2-piperidineacetic Acid (CAS 149518-50-3)
- Methyl N-Boc-piperidine-3-carboxylate (CAS 148763-41-1)
- 2-Butenoic acid, 4-[[(1,1-dimethylethoxy)carbonyl]methylamino]-, ethyl ester, (E)- (CAS 149650-08-8)
- 2-(3,5-Dichlorophenethyl)benzoic acid (CAS 189067-48-9)
- 4-Fluoro-3-hydroxybenzeneboronic acid pinacol ester, 97% (CAS 1392234-97-7)
- 1-Boc-4-(methylthio)piperidine (CAS 208245-69-6)
- Methyl 2-amino-3-oxohexahydro-1H-pyrrolizine-7a-carboxylate (CAS 375792-69-1)
- alpha-(Trifluoromethyl)-6-methoxypyridine-2-methanol (CAS 1700092-90-5)
- 4-Amino-7-chloroquinazolin-2(1H)-one (CAS 1093201-76-3)
- (6-Formylquinolin-4-yl)boronic acid (CAS 958852-19-2)
- Methyl 1-propyl-1H-imidazole-4-carboxylate (CAS 149096-32-2)
- 2-(4-Methyl-2-phenylthiazole-5-carbonyl)-3-phenylcyclopropane-1,1-dicarbonitrile (CAS 478041-06-4)
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