4-(Difluoromethyl)-2,3-dimethylpyridine CAS 1804753-74-9
| CAS No. | 1804753-74-9 |
| Molecular Formula | C8H9F2N |
| Molecular Weight | 157.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 4-(Difluoromethyl)-2,3-dimethylpyridine is closely related to a nitrogen-containing heterocyclic scaffold, a nitrile group, fluorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
4-(Difluoromethyl)-2,3-dimethylpyridine (CAS 1804753-74-9) is a high-purity analytical reference standard with the molecular formula C8H9F2N and a molecular weight of 157.16 g/mol.
Based on its molecular formula C8H9F2N, 4-(Difluoromethyl)-2,3-dimethylpyridine contains a nitrogen-containing heterocyclic scaffold, a nitrile group, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 157.16 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 4-(Difluoromethyl)-2,3-dimethylpyridine 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 | C8H9F2N |
| Molecular Weight | 157.16 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| 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.) | 1995 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
Related Difluoromethyl Standards
- 3-(Difluoromethyl)-4-methylaniline (CAS 1261550-93-9)
- 2-Difluoromethyl-3-methyl-phenylamine (CAS 1261566-27-1)
- 2-(Difluoromethyl)-4-methylaniline (CAS 1261581-14-9)
- 4-(Difluoromethyl)-3-methylaniline (CAS 1261837-84-6)
- 4-(Difluoromethyl)-2-methylaniline (CAS 1261861-00-0)
- 2-(Difluoromethyl)-3,5-dimethylpyridine (CAS 1804445-64-4)
- 2-(Difluoromethyl)-3,6-dimethylpyridine (CAS 1804659-68-4)
- 4-(Difluoromethyl)-3,5-dimethylpyridine (CAS 1805311-30-1)
Recommended Standards
- 2-Ethyl-4,5-difluoroaniline (CAS 1849300-55-5)
- 3-(trifluoromethyl)thietan-3-amine (CAS 1785397-03-6)
- (1S)-1-(3,5-Difluorophenyl)ethan-1-amine (CAS 444643-16-7)
- 2-(2,6-difluorophenyl)ethan-1-amine (CAS 17291-90-6)
- (11bS)-2,6-bis[3,5-bis(trifluoromethyl)phenyl]-N,N-bis[(1R)-1-phenylethyl]-dinaphtho[2,1-d:1',2'-f][1,3,2]dioxaphosphepin-4-amine (CAS 1642864-21-8)
- 4-(4-fluorophenyl)-2-hydrazono-2,3-dihydrothiazole (CAS 82100-92-3)
- 5-[1-(3,4-Dimethylphenoxy)ethyl]-4-ethyl-4H-1,2,4-triazole-3-thiol 588673-85-2 6165AE C14H19N3OS (CAS 588673-85-2)
- 6-Chloroquinoline-4-thiol (CAS 64495-66-5)
- 2-Hydroxy-5-(methylcarbamoyl)benzoic acid (CAS 1243280-47-8)
- N-(2-(3-Aminopropyl)-6-chloroquinolin-5-yl)-2-cyclohexylacetamide (CAS 803735-41-3)
- 2,5-Bis(2,2,2-trifluoroethoxy)-N'-(3-(trifluoromethyl)benzoyl)benzohydrazide (CAS 477872-45-0)
- 4-(Propan-2-yloxy)benzohydrazide (CAS 90873-17-9)
- Methyl 1-(4-aminophenyl)piperidine-4-carboxylate (CAS 471938-27-9)
- Semaglutide impurity 38 (CAS CATO-C4X-222638)
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