tert-butyl 6,7-difluoro-3,4-dihydro-2H-quinoxaline-1-carboxylate CAS 887590-33-2
| CAS No. | 887590-33-2 |
| Molecular Formula | C13H16F2N2O2 |
| Molecular Weight | 270.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), tert-butyl 6,7-difluoro-3,4-dihydro-2H-quinoxaline-1-carboxylate 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.
tert-butyl 6,7-difluoro-3,4-dihydro-2H-quinoxaline-1-carboxylate (CAS 887590-33-2), molecular formula C13H16F2N2O2 and molecular weight 270.28 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, tert-butyl 6,7-difluoro-3,4-dihydro-2H-quinoxaline-1-carboxylate (C13H16F2N2O2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 270.28 g/mol, it falls into the medium-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C13H16F2N2O2 |
| Molecular Weight | 270.28 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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.) | 1987 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
Recommended Standards
- tert-Butyl 5-cyano-3-formyl-1H-indole-1-carboxylate (CAS 914348-93-9)
- 19956-54-8 4-Methoxy-2-((E)-1-methoxy-3-phenylallylidene)cyclopent-4-ene-1,3-dione (CAS 19956-54-8)
- Resveratrol-4-acetate (CAS 411233-11-9)
- (-)-3-Hydroxy-9-methoxypterocarpan (-)-Demethylhomopterocarpin (-)-Medicarpin (l)-De-o-methylhomopterocarpan 3-Hydroxy-9-methoxypterocarpan 32383-76-9 6H-Benzofuro[3, 6a,11a-dihydro-9-methoxy-, (6aR-cis)- 6H-Benzofuro[3, 6a,11a-dihydro-9-methoxy-, cis- Demethylhomopterocarpin Medicarpin Medicarpin, (-)- NSC-350085 NSC350085 l-3-Hydroxy-9-methoxypterocarpan (CAS 32383-76-9)
- D-Histidine Methyl Ester (CAS 17720-12-6)
- Ethyl 4-(5-amino-3-methyl-1h-pyrazol-1-yl)benzoate (CAS 866472-30-2)
- (2R)-1,2-dimethylpyrrolidine-2-carboxylic acid (CAS 1268520-34-8)
- 4-(Isocyanomethyl)pyridine (CAS 58644-56-7)
- 24:1(2R-OH) Ceramide (CAS 1246298-50-9)
- Cyclopropyl(2-methoxyphenyl)methanamine (CAS 535925-80-5)
- 5,6,7,8-Tetrahydro-[1,2,4]triazolo[5,1-b]quinazolin-9-ol (CAS 99131-44-9)
- (3Z)-4-[(3-Bromophenyl)amino]-3-(3,4-dimethoxyphenyl)but-3-en-2-one (CAS 339017-42-4)
- Fura-2 (CAS 96314-98-6)
- Cycloaspeptide D (CAS 691363-62-9)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com