Description
2-Methoxy-5-(trifluoromethyl)pyridine (CAS No. 175277-45-9) is a high-purity fluorinated pyridine derivative with the molecular formula C7H6F3NO. This specialized heterocyclic compound features a methoxy group at the 2-position and a trifluoromethyl group at the 5-position of the pyridine ring, offering unique electronic and steric properties for advanced synthetic applications. With a molecular weight of 177.12 g/mol, it is supplied as a clear to pale yellow liquid (or low-melting solid) with ≥95% purity by GC analysis. Ideal for pharmaceutical intermediates, agrochemical research, and materials science, this building block is packaged under inert gas in amber glass vials to ensure stability. Storage at 2-8°C is recommended.
Properties
- CAS Number: 175277-45-9
- Complexity: 148
- IUPAC Name: 2-methoxy-5-(trifluoromethyl)pyridine
- InChI: InChI=1S/C7H6F3NO/c1-12-6-3-2-5(4-11-6)7(8,9)10/h2-4H,1H3
- InChI Key: KNIGTEGBOBDGKP-UHFFFAOYSA-N
- Exact Mass: 177.04014830
- Molecular Formula: C7H6F3NO
- Molecular Weight: 177.12
- SMILES: COC1=NC=C(C=C1)C(F)(F)F
- Topological: 22.1
- Monoisotopic Mass: 177.04014830
- Synonyms: 2-methoxy-5-(trifluoromethyl)pyridine, 175277-45-9, DTXSID10379517, DTXCID70330543, 671-298-3, 2-Methoxy-5-Trifluoromethylpyridine, Pyridine, 2-methoxy-5-(trifluoromethyl)-, MFCD00153203, SCHEMBL706406, SCHEMBL706407, SCHEMBL769126, SCHEMBL4502441, CHEMBL4565654, SCHEMBL21810854, DGEGIRVNNBOXQQ-UHFFFAOYSA-N, ZXTWDBXMBXELGJ-UHFFFAOYSA-N, SBB055546, AKOS005063675, AB04096, AC-9484, CS-W017379, DS-1350, FS-1131, 2-methoxy 5-(trifluoromethyl) pyridine, SY031471, DB-031392, M2832, ST50949988, EN300-157074, H10035
Application
2-Methoxy-5-(trifluoromethyl)pyridine serves as a key intermediate in the synthesis of bioactive molecules, particularly in pharmaceutical and agrochemical research. Its electron-deficient pyridine core and trifluoromethyl group make it valuable for designing kinase inhibitors and CNS-active compounds. The compound is also utilized in ligand synthesis for catalytic systems and as a fluorinated building block in material science applications.
Safety and Hazards
GHS Hazard Statements
- H226 (66.7%): Flammable liquid and vapor [Warning Flammable liquids]
- H302 (33.3%): Harmful if swallowed [Warning Acute toxicity, oral]
- H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]
- H319 (100%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
- H335 (66.7%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]
Precautionary Statements
- P210, P233, P240, P241, P242, P243, P261, P264, P264+P265, P270, P271, P280, P301+P317, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P319, P321, P330, P332+P317, P337+P317, P362+P364, P370+P378, P403+P233, P403+P235, P405, and P501
Hazard Classes and Categories
- Flam. Liq. 3 (66.7%)
- Acute Tox. 4 (33.3%)
- Skin Irrit. 2 (100%)
- Eye Irrit. 2A (100%)
- STOT SE 3 (66.7%)
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Disclaimer: Sold exclusively for laboratory research. Prohibited for commercial use, diagnostics, or human/animal applications. Buyers assume all compliance liability.


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