tert-Butyl 5-chloro-3,4-dihydroquinoxaline-1(2H)-carboxylate CAS 1783490-76-5
| CAS No. | 1783490-76-5 |
| Molecular Formula | C13H17ClN2O2 |
| Molecular Weight | 268.74 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies tert-Butyl 5-chloro-3,4-dihydroquinoxaline-1(2H)-carboxylate (CAS 1783490-76-5), a certified reference material (molecular formula C13H17ClN2O2, MW 268.74 g/mol) for analytical method development and quality control.
tert-Butyl 5-chloro-3,4-dihydroquinoxaline-1(2H)-carboxylate (C13H17ClN2O2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures tert-Butyl 5-chloro-3,4-dihydroquinoxaline-1(2H)-carboxylate under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C13H17ClN2O2 |
| Molecular Weight | 268.74 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1994 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Recommended Standards
- tert-Butyl 6-chloro-3,4-dihydroquinoxaline-1(2H)-carboxylate (CAS 1783469-40-8)
- tert-Butyl 7-chloro-3,4-dihydroquinoxaline-1(2H)-carboxylate (CAS 1784799-80-9)
- 3-Chloro-4-(isopropylsulfonyl)thiophene-2-carboxylic acid (CAS 175202-26-3)
- tert-Butyl 8-chloro-3,4-dihydroquinoxaline-1(2H)-carboxylate (CAS 1784799-86-5)
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