For any advanced chemical intermediate, especially those destined for high-technology applications like OLEDs, rigorous characterization is non-negotiable. The identity and purity of compounds such as 3-Bromo-9-(1-naphthyl)-9H-carbazole (CAS: 934545-83-2) are confirmed through sophisticated analytical techniques, primarily Nuclear Magnetic Resonance (NMR) spectroscopy and Mass Spectrometry (MS). As a leading manufacturer and supplier of OLED intermediates, NINGBO INNO PHARMCHEM CO.,LTD. ensures that every batch of this vital compound is thoroughly analyzed to meet stringent quality standards.

Nuclear Magnetic Resonance (NMR) Spectroscopy:

NMR spectroscopy is the gold standard for elucidating the structure of organic molecules. For 3-Bromo-9-(1-naphthyl)-9H-carbazole, both ¹H NMR and ¹³C NMR are invaluable. The ¹H NMR spectrum will show characteristic signals for the aromatic protons on both the carbazole and naphthyl moieties. The chemical shifts and coupling patterns of these protons are highly sensitive to their electronic environment, revealing the positions of substituents. The presence of the bromine atom, an electron-withdrawing group, will influence the chemical shifts of nearby protons on the carbazole ring. The ¹³C NMR spectrum provides complementary information by identifying each unique carbon atom in the molecule, confirming the overall carbon framework and the presence of the bromine substituent.

Mass Spectrometry (MS):

Mass spectrometry provides information about the molecular weight and fragmentation pattern of a compound, thereby confirming its identity and purity. For 3-Bromo-9-(1-naphthyl)-9H-carbazole, the molecular ion peak will correspond to its molecular weight (approximately 372.26 g/mol). A crucial diagnostic feature in the mass spectrum will be the characteristic isotopic pattern of bromine, with two peaks of nearly equal intensity separated by 2 atomic mass units (M and M+2), confirming the presence of a single bromine atom. High-resolution mass spectrometry (HRMS) can further confirm the exact elemental composition.

These analytical techniques are integral to the quality control processes at NINGBO INNO PHARMCHEM CO.,LTD. Ensuring the structural integrity and high purity of 3-Bromo-9-(1-naphthyl)-9H-carbazole is paramount for its successful application in OLED device fabrication, where even minute impurities can significantly degrade performance.

For researchers and procurement professionals looking to buy 3-Bromo-9-(1-naphthyl)-9H-carbazole, understanding the analytical data provided by a reputable supplier is essential. We offer comprehensive Certificates of Analysis detailing spectral data to verify the quality of our products. If you require this critical intermediate for your OLED R&D or manufacturing, we encourage you to inquire about our pricing and availability.

NINGBO INNO PHARMCHEM CO.,LTD. is committed to supporting the advancement of organic electronics by providing high-quality, thoroughly characterized chemical intermediates. Contact us to secure your supply of 3-Bromo-9-(1-naphthyl)-9H-carbazole.