4-Chloro-2,6-dimethylpyrimidine CAS 4472-45-1
| CAS No. | 4472-45-1 |
| Molecular Formula | C6H7ClN2 |
| Molecular Weight | 142.59 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a nitrile group, chlorine substitution, an aromatic ring system, 4-Chloro-2,6-dimethylpyrimidine is typically off-white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 142.59 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
4-Chloro-2,6-dimethylpyrimidine (CAS 4472-45-1) is a high-purity analytical reference standard with the molecular formula C6H7ClN2 and a molecular weight of 142.59 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.
As a certified reference material (CRM), 4-Chloro-2,6-dimethylpyrimidine 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.
Physical & Chemical Properties
| Molecular Formula | C6H7ClN2 |
| Molecular Weight | 142.59 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Chloro Standards
- 2-Chloro-1,4,5,6-tetrahydrocyclopenta[d]imidazole (CAS 1049118-62-8)
- 4-Chloro-6-methylpyridin-3-amine (CAS 1092285-77-2)
- 2-Chloro-5-ethylpyrimidine (CAS 111196-81-7)
- 4-Chloro-1-cyclopropyl-1H-pyrazole (CAS 1204901-66-5)
- 2-Chloro-6-ethylpyrazine (CAS 1209458-23-0)
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- 2-Chloro-5-ethylpyrazine (CAS 1260666-57-6)
Recommended Standards
- 4-Chloro-2,5-dimethylpyrimidine (CAS 75712-74-2)
- 4-Chloro-3,6-dimethylpyridazine (CAS 68206-05-3)
- 4-Chloro-2-(methylamino)pyridine (CAS 782439-26-3)
- 4-Chloro-5,6-dimethylpyrimidine (CAS 67434-65-5)
- 2,4,6-Tribromo-3-nitroaniline (CAS 62406-72-8)
- (E)-4-(2-(2-Ethylthiophen-3-yl)vinyl)-1H-imidazole (CAS 443923-58-8)
- 3-(Benzyloxy)-5-fluoroaniline (CAS 1438272-88-8)
- 6-(2-((1-(p-Tolyl)-1H-tetrazol-5-yl)thio)acetyl)-2H-benzo[b][1,4]oxazin-3(4H)-one (CAS 851282-35-4)
- 2-((2-Methylpiperidin-1-yl)methyl)benzaldehyde (CAS 1443336-82-0)
- [2-(1H-Pyrazol-1-yl)-1,3-thiazol-4-yl]methanol (CAS 256420-40-3)
- 4-((Bromomethyl)sulfonyl)-2,2-dimethylthiomorpholine (CAS 1602363-51-8)
- 2,2-Difluoro-cyclopropaneboronic acid (CAS 2408428-30-6)
- 3,3-Difluoro-1,4'-bipiperidine (CAS 864356-23-0)
- Acetyl Hexapeptide-39 (CAS 1382088-38-1)
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