Ensuring the identity, purity, and structural integrity of chemical intermediates is fundamental to successful research and manufacturing. For 2-(3-Bromophenyl)pyridine (CAS: 4373-60-8), a critical building block in pharmaceutical and material science applications, robust characterization is paramount. NINGBO INNO PHARMCHEM CO.,LTD., as a committed supplier, emphasizes the importance of these analytical methods in guaranteeing product quality.

Nuclear Magnetic Resonance (NMR) Spectroscopy: The Gold Standard

NMR spectroscopy, particularly ¹H NMR and ¹³C NMR, is indispensable for confirming the carbon-hydrogen framework and electronic environment of molecules. The ¹H NMR spectrum of 2-(3-Bromophenyl)pyridine exhibits characteristic multiplets in the aromatic region (typically 7.0-8.8 ppm), with distinct chemical shifts and coupling patterns revealing the positions of protons on both the phenyl and pyridine rings. The ¹³C NMR spectrum complements this by showing signals for each of the eleven carbon atoms, with the carbon bonded to bromine showing a notable shift. For definitive structural assignments, multidimensional techniques like COSY, HSQC, and HMBC are crucial for establishing connectivity.

Mass Spectrometry (MS): Unveiling Molecular Weight and Composition

Mass spectrometry, especially high-resolution techniques like ESI-TOF (Electrospray Ionization Time-of-Flight), provides precise molecular weight and elemental composition data. By analyzing the mass-to-charge ratio of ions, MS confirms the formation of the target molecule. For 2-(3-Bromophenyl)pyridine, HRMS can accurately determine the molecular formula (C₁₁H₈BrN), solidifying its identity. LC-MS/MS is also valuable for analyzing complex mixtures and performing quantitative analysis, especially in pharmaceutical R&D.

Vibrational Spectroscopy: FT-IR and Raman Fingerprints

Fourier Transform Infrared (FT-IR) and Raman spectroscopy probe the vibrational modes of a molecule, offering a unique spectral fingerprint. FT-IR spectra of 2-(3-Bromophenyl)pyridine would show characteristic absorption bands for aromatic C-H stretching (3000-3100 cm⁻¹), C=C and C=N stretching in the aromatic rings (1400-1600 cm⁻¹), and potentially C-Br stretching in the far-infrared. Raman spectroscopy provides complementary information, often highlighting symmetric vibrations of the aromatic rings.

Elemental Analysis: Verifying Purity and Empirical Formula

Elemental analysis, typically determining the percentage composition of carbon, hydrogen, and nitrogen, is a fundamental method for confirming the empirical formula and assessing the overall purity of synthesized compounds. For intermediates sourced from NINGBO INNO PHARMCHEM CO.,LTD., rigorous elemental analysis is part of our quality assurance process, ensuring you receive materials that meet stringent specifications.

Your Trusted Source for High-Quality Intermediates

By employing these advanced analytical techniques, NINGBO INNO PHARMCHEM CO.,LTD. guarantees the quality and reliability of our 2-(3-Bromophenyl)pyridine. Whether you are conducting pharmaceutical research or developing new materials, partner with us for intermediates you can trust.