In the realm of chemical synthesis and quality control, the accurate structural elucidation of compounds is paramount. At Ningbo Inno Pharmchem Co., Ltd., we leverage cutting-edge analytical techniques to ensure the identity and purity of our products, including intricate molecules like 4-Bromo-1,2-dichlorobenzene. Understanding its structure through spectroscopy is fundamental to its reliable application in demanding industries such as pharmaceuticals and agrochemicals.

4-Bromo-1,2-dichlorobenzene, with its specific arrangement of three halogen atoms on a benzene ring, presents a unique spectroscopic signature. Nuclear Magnetic Resonance (NMR) spectroscopy, particularly ¹H NMR and ¹³C NMR, is indispensable for confirming its structure. The ¹H NMR spectrum reveals the characteristic signals of the aromatic protons, their chemical shifts dictated by the electron-withdrawing nature of the halogens and their relative positions. The splitting patterns provide critical information about proton-proton couplings, confirming the substitution pattern on the aromatic ring.

Similarly, the ¹³C NMR spectrum provides insights into the different carbon environments within the molecule. The carbons directly attached to bromine and chlorine atoms exhibit distinct chemical shifts, allowing for differentiation and confirmation of the regiochemistry. The absence of symmetry in the molecule means that each of the six carbon atoms on the benzene ring will typically give rise to a unique signal in the proton-decoupled ¹³C NMR spectrum.

Mass Spectrometry (MS) plays a vital role in confirming the molecular weight and elemental composition. The presence of bromine and chlorine isotopes leads to a characteristic isotopic cluster pattern in the mass spectrum, which is a definitive identifier. High-resolution mass spectrometry (HRMS) can further confirm the exact elemental formula by providing highly accurate mass measurements, distinguishing it from other compounds with similar nominal masses.

Infrared (IR) and Raman spectroscopy offer complementary vibrational information. These techniques probe the specific stretching and bending vibrations of chemical bonds within the molecule. Characteristic C-Cl and C-Br stretching frequencies, along with the vibrations of the aromatic ring and C-H bonds, contribute to a unique spectral fingerprint that can be used for identification and quality assessment.

At Ningbo Inno Pharmchem Co., Ltd., we employ a battery of these spectroscopic techniques, often in combination with chromatographic methods like Gas Chromatography (GC) or High-Performance Liquid Chromatography (HPLC), to rigorously analyze our 4-Bromo-1,2-dichlorobenzene. This meticulous characterization ensures that our product meets the highest standards of purity and structural integrity, guaranteeing its performance and reliability in our clients' synthesis processes. Our commitment to analytical excellence underpins the trust placed in us by industries that demand precision and consistency.