5-Methyl-5H-dibenzo[b,d]thiophen-5-ium trifluoromethanesulfonate-d3

• CAT Number: I043237
• CAS Number: 2251781-83-4
• Molecular Formula: C14H8D3F3O3S2
• Molecular Weight: 351.38
• Purity: ≥95%
• Synonyms: 5-(trideuteriomethyl)dibenzothiophen-5-ium;trifluoromethanesulfonate
• InChI: InChI=1S/C13H11S.CHF3O3S/c1-14-12-8-4-2-6-10(12)11-7-3-5-9-13(11)14;2-1(3,4)8(5,6)7/h2-9H,1H3;(H,5,6,7)/q+1;/p-1/i1D3
• InChIKey: ROHWBLNJJVPWCN-NIIDSAIPSA-M
• SMILES: [2H]C([2H])([2H])[S+]1C2=CC=CC=C2C3=CC=CC=C31.C(F)(F)(F)S(=O)(=O)[O-]

5-Methyl-5H-dibenzo[b,d]thiophen-5-ium trifluoromethanesulfonate-d₃（Cat No.:I043237）is a stable, deuterium-labeled thiophenium salt used in organic synthesis, pharmaceutical research, and isotope-labeled compound development. The thiophenium core provides electrophilic reactivity, making it valuable in catalysis, sulfonium chemistry, and electrophilic aromatic substitution reactions. The trifluoromethanesulfonate (triflate) counterion enhances solubility and stability, while deuterium labeling (d₃) makes it useful in NMR studies, mass spectrometry, and metabolic tracing experiments. This compound is particularly relevant in drug discovery, reaction mechanism studies, and the synthesis of isotopically labeled pharmaceuticals for pharmacokinetic analysis.