At NINGBO INNO PHARMCHEM CO.,LTD., we recognize that the integrity of chemical compounds is paramount, especially for sensitive applications in pharmaceuticals and material science. 1,2-Bis(dichloromethyl)benzene, a key intermediate, undergoes rigorous quality control, heavily relying on spectroscopic analysis to confirm its purity and structural identity.

Nuclear Magnetic Resonance (NMR) spectroscopy is a cornerstone in our analytical process. Both ¹H NMR and ¹³C NMR provide detailed information about the molecular structure. The ¹H NMR spectrum of 1,2-Bis(dichloromethyl)benzene clearly shows distinct signals for the aromatic protons and the characteristic downfield shift for the protons of the dichloromethyl groups. ¹³C NMR further confirms the presence of the specific carbon environments, including the unique signal for the carbon bearing two chlorine atoms. These spectra are crucial for identifying the compound and detecting any structural impurities.

Infrared (IR) and Raman spectroscopy offer complementary vibrational information. The IR spectrum of 1,2-Bis(dichloromethyl)benzene exhibits characteristic absorption bands corresponding to C-Cl stretches, aromatic C-H stretches, and C=C ring vibrations, providing a fingerprint of the molecule. Raman spectroscopy complements this by highlighting specific vibrational modes that are sensitive to symmetry and bonding. These techniques are vital for confirming the presence of functional groups and identifying subtle structural differences that might indicate impurities.

Mass Spectrometry (MS), particularly Gas Chromatography-Mass Spectrometry (GC-MS), is essential for assessing purity and molecular weight. GC separates the components of a sample, and MS then identifies them based on their mass-to-charge ratio and fragmentation patterns. The isotopic signature of chlorine atoms in 1,2-Bis(dichloromethyl)benzene provides a distinctive pattern in the mass spectrum, aiding in its unequivocal identification and the detection of any related chlorinated byproducts or starting materials that might remain.

By employing a comprehensive suite of spectroscopic techniques, NINGBO INNO PHARMCHEM CO.,LTD. ensures that every batch of 1,2-Bis(dichloromethyl)benzene meets the highest standards of purity and structural accuracy. This commitment to quality control is fundamental for our customers, providing them with reliable organic synthesis precursors and ensuring the success of their research and manufacturing processes.