It depends on nature of the products. Generally speaking, COA, GC/HPLC ,¹HNMR ,MS and IR will be provided.  If clients have special requests for product spectrum, they are recommended to propose and confirm when placing orders or before enquiring. Please note that for standard solutions with mixed substances, the methods and spectrum offered by providers may not reappear in users鈥� laboratories due to laboratory differences. In addition, peak sequence may also change.