In 1977,Acta Chimica Academiae Scientiarum Hungaricae included an article by Varsanyi, G.; Horvath, G.; Imre, L.; Schawartz, J.; Sohar, P.; Soti, F.. Formula: C8H6Cl2O3. The article was titled 《Infrared spectra of 1,2,3,5-tetrasubstituted benzene derivatives》. The information in the text is summarized as follows:
The ring vibration in the IR of one-hundred and fifteen 1,2,3,5-tetrasubsituted benzenes are classified into 3 groups, depending on whether all 4 substituents are light or 1 or 2 of them are heavy (constants Cl, Br and/or I). The substituent effects on the fundamental vibrations of the benzene ring and their intensities, and the character of the bands associated with internal substituent vibrations are discussed. In the part of experimental materials, we found many familiar compounds, such as 3,5-Dichloro-4-methoxybenzoic acid(cas: 37908-97-7Formula: C8H6Cl2O3)
3,5-Dichloro-4-methoxybenzoic acid(cas: 37908-97-7) belongs to organochlorine compounds. The wide structural variety and divergent chemical properties of organochlorides lead to a broad range of names, applications, and properties. Aliphatic organochlorides are often alkylating agents as chlorine can act as a leaving group, which can result in cellular damage.Formula: C8H6Cl2O3
Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics