Veratric acid impurities are unwanted substances that may be present in samples of veratric acid. These impurities can affect the purity and quality of the veratric acid, leading to inaccurate results in scientific experiments and research. It is important to identify and remove these impurities to ensure the reliability and accuracy of any analysis involving veratric acid. Various analytical techniques such as HPLC and GC can be used for the detection and quantification of veratric acid impurities.