4,6-Dichloro-2-(m-tolyl)pyrimidine CAS 26863-48-9
| CAS No. | 26863-48-9 |
| Molecular Formula | C11H8Cl2N2 |
| Molecular Weight | 239.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4,6-Dichloro-2-(m-tolyl)pyrimidine (C11H8Cl2N2) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; 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.
4,6-Dichloro-2-(m-tolyl)pyrimidine (CAS 26863-48-9) is a high-purity analytical reference standard with the molecular formula C11H8Cl2N2 and a molecular weight of 239.10 g/mol.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
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 | C11H8Cl2N2 |
| Molecular Weight | 239.10 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.) | 1964 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Dichloro Standards
- 1171545-90-6 3,4-Dichloro-6-(4-methylphenyl)pyridazine MFCD14281579 (CAS 1171545-90-6)
- 1-(3,5-Dichloro-4-fluorophenyl)thiourea (CAS 1263377-07-6)
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Recommended Standards
- 4,5-Dichloro-6-methyl-2-phenylpyrimidine (CAS 32832-26-1)
- 4,6-Dichloro-2-(o-tolyl)pyrimidine (CAS 26863-54-7)
- 4-(3,4-Dichlorophenyl)phenol (CAS 53890-77-0)
- 4,6-Dichloro-2-(p-tolyl)pyrimidine (CAS 21139-61-7)
- 2-Hydroxy-7-phenylisoquinoline-1,3(2H,4H)-dione (CAS 1092802-01-1)
- Leucothionin (CAS 34353-37-2)
- 3,4-Dibromo-6-ethoxy-2-(hydroxymethyl)phenol (CAS 35090-69-8)
- 5-Bromo-7-chloro-1H-pyrrolo[2,3-c]pyridine (CAS 1198096-48-8)
- N,N'-((3aR,4S,7R,7aS)-5-(benzamidomethyl)-2,2-dimethyl-3a,4,7,7a-tetrahydrobenzo[d][1,3]dioxole-4,7-diyl)dibenzamide (CAS 1998128-29-2)
- 5-(tert-Butyl)-7-chloro-1H-indole (CAS 180623-90-9)
- 1-(cyclopropylmethyl)piperidin-4-amine (CAS 380424-59-9)
- 62601-06-3 Propanoic-1-13C acid, sodium salt 13C-labeled Sodium propionate (1-13C)Sodium propionate (CAS 62601-06-3)
- 6-Amino-2-((furan-2-ylmethyl)amino)pyrimidin-4(3H)-one (CAS 882399-27-1)
- Heptapeptide-6 (CAS CATO-CPTD788823)
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