6-Fluoro-4-methyl-3,4-dihydroquinoxalin-2(1H)-one CAS 1247021-99-3
| CAS No. | 1247021-99-3 |
| Molecular Formula | C9H9FN2O |
| Molecular Weight | 180.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
6-Fluoro-4-methyl-3,4-dihydroquinoxalin-2(1H)-one (CAS 1247021-99-3), molecular formula C9H9FN2O and molecular weight 180.18 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C9H9FN2O, 6-Fluoro-4-methyl-3,4-dihydroquinoxalin-2(1H)-one contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 180.18 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO manufactures 6-Fluoro-4-methyl-3,4-dihydroquinoxalin-2(1H)-one 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 | C9H9FN2O |
| Molecular Weight | 180.18 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, 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 |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
Related Fluoro Standards
- 7-fluoro-4-methyl-1,2,3,4-tetrahydroquinoxalin-2-one (CAS 1033312-09-2)
- 7-Fluoro-4-methoxy-2,3-dihydro-1H-inden-1-one (CAS 1092347-31-3)
- 6-Fluoro-4-methoxy-2,3-dihydro-1H-inden-1-one (CAS 1092347-59-5)
- 4-Fluoro-6-methoxy-2,3-dihydro-1H-inden-1-one (CAS 1092347-61-9)
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- 6-Fluoro-3-methyl-chroman-4-one (CAS 113209-67-9)
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