3,5-Dichloro-6-(4-fluorophenyl)-1-methylpyrazin-2(1H)-one CAS 1269530-80-4
| CAS No. | 1269530-80-4 |
| Molecular Formula | C11H7Cl2FN2O |
| Molecular Weight | 273.09 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3,5-Dichloro-6-(4-fluorophenyl)-1-methylpyrazin-2(1H)-one (CAS 1269530-80-4) is a high-purity analytical reference standard with the molecular formula C11H7Cl2FN2O and a molecular weight of 273.09 g/mol.
Structurally, 3,5-Dichloro-6-(4-fluorophenyl)-1-methylpyrazin-2(1H)-one (C11H7Cl2FN2O) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 273.09 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C11H7Cl2FN2O |
| Molecular Weight | 273.09 g/mol |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 2 |
Related Dichloro Standards
- 3,5-Dichloro-6-(3-fluorophenyl)-1-methylpyrazin-2(1H)-one (CAS 1269529-93-2)
- 3,5-Dichloro-6-(2-fluorophenyl)-1-methylpyrazin-2(1H)-one (CAS 1269533-60-9)
- 4,5-Dichloro-2-(2-fluorobenzyl)pyridazin-3(2h)-one (CAS 175135-46-3)
- 2-(4,5-Dichloro-1H-imidazol-1-yl)-1-(4-fluorophenyl)ethan-1-one (CAS 866151-51-1)
- 4,5-Dichloro-2-(4-fluorobenzyl)pyridazin-3(2H)-one (CAS 307508-07-2)
- 4,6-Dichloro-N-(4-fluorobenzyl)-1,3,5-triazin-2-amine (CAS 546140-76-5)
- 2-((4,6-Dichloro-1,3,5-triazin-2-yl)amino)ethanesulfonic acid (CAS 21369-77-7)
- 2,4-Dichloro-7-methoxy-3-nitroquinoline (CAS 1447961-41-2)
Recommended Standards
- 6-bromo-3-(trifluoromethyl)imidazo[1,5-a]pyridine (CAS 1262619-64-6)
- 2-Chloro-N4-(4-chloro-3-fluoro-phenyl)-pyrimidine-4,5-diamine (CAS 1627180-67-9)
- 5-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)isoindoline-1,3-dione (CAS 1220423-08-4)
- (5-(N-Cyclopropylsulfamoyl)-2-fluoro-4-methylphenyl)boronic acid (CAS 1704121-43-6)
- 3-Ethyl-2-methylheptan-2-ol (CAS 19780-59-7)
- [(1S)-3,3-difluorocyclopentyl]methanamine hydrochloride (CAS 2007916-16-5)
- tert-Butyl 10-oxo-2,7-diazaspiro[4.5]decane-7-carboxylate (CAS 1363380-92-0)
- Mirabegron M12 (YM-538858) (CAS 1365244-66-1)
- N-(4-Fluorophenyl)-2-((1-(4-methoxyphenyl)-1H-tetrazol-5-yl)thio)propanamide (CAS 890638-56-9)
- 3-(furan-2-yl)-2-azaspiro[3.4]octan-1-one (CAS 1865196-56-0)
- Rosuvastatin Impurity 69 (CAS 1821422-51-8)
- Dimethyl 1-(4-methoxybenzyl)-6-oxo-1,4,5,6-tetrahydropyridine-2,3-dicarboxylate (CAS 338748-78-0)
- 6-(2,2-Difluoroethoxy)-1,3-benzothiazol-2-amine (CAS 1855888-91-3)
- Peptide Impurity 15 (CAS 1227750-69-7)
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