3-(Difluoromethyl)-2-Methylpyridine CAS 335428-90-5
| CAS No. | 335428-90-5 |
| Molecular Formula | C7H7F2N |
| Molecular Weight | 143.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 143.13 g/mol gives 3-(Difluoromethyl)-2-Methylpyridine distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
3-(Difluoromethyl)-2-Methylpyridine (CAS 335428-90-5) is a high-purity analytical reference standard with the molecular formula C7H7F2N and a molecular weight of 143.13 g/mol.
Based on its molecular formula C7H7F2N, 3-(Difluoromethyl)-2-Methylpyridine contains a nitrile group, fluorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 143.13 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.
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), 3-(Difluoromethyl)-2-Methylpyridine 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 | C7H7F2N |
| Molecular Weight | 143.13 g/mol |
| 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.) | 2025 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
Related Difluoromethyl Standards
- 2-(Difluoromethyl)-6-methylpyridine (CAS 1029691-30-2)
- 3-(Difluoromethyl)-5-methylpyridine (CAS 1374659-24-1)
- 5-(Difluoromethyl)-2-methylpyridine (CAS 1374659-25-2)
- 2-(Difluoromethyl)-4-methylpyridine (CAS 1628839-41-7)
- 2-(Difluoromethyl)-3-methylpyridine (CAS 1805301-81-8)
- 2-(Difluoromethyl)-5-methylpyridine (CAS 1805301-86-3)
- 4-(Difluoromethyl)-2-methylpyridine (CAS 1805310-42-2)
- 4-(Difluoromethyl)aniline (CAS 49658-26-6)
Recommended Standards
- 2-Nitrophenol-3,4,5,6-d4 (CAS 93951-78-1)
- 3,3,3-Trifluoropropanethioamide (CAS 365428-34-8)
- 2,6-Difluoro-N-methylaniline (CAS 55847-14-8)
- 3,5-Difluoro-4-methylaniline (CAS 878285-13-3)
- 6-(2-(Diethylamino)ethoxy)-2-methylpyridazin-3(2H)-one (CAS 573983-28-5)
- 4-(2,2-Difluoroethoxy)naphthalene-1-sulfonyl chloride (CAS 1184189-21-6)
- 2-((3-Chloropyridin-2-yl)oxy)ethan-1-amine hydrochloride (CAS 1394040-72-2)
- 1-Amino-4-fluoronaphthalene Hydrochloride (CAS 438-26-6)
- Loxoprofen impurity 100 (CAS CATO-C4X-1488100)
- 4-Chloro-7-fluoro-1H-imidazo[4,5-c]pyridine (CAS 405230-97-9)
- Granisetron Hydrochloride (CAS 107007-99-8)
- N-(Methoxymethyl)methacrylamide (stabilized with MEHQ) (CAS 3644-12-0)
- 6-Methyl-2-(1-pyrrolidinyl)-4-pyrimidinamine (CAS 1247645-16-4)
- Semaglutide impurity 206 (CAS CATO-C4X-2226206)
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