|
| Grade | Manufacturer |
| Tea saponin standard | 99% | Preparation by our lab |
| Crude tea saponin | ≥50% | Preparation by our lab |
| Ethyl alcohol | Analytical pure | Guoyao chemical reagent Co. LTD |
| Methanol | Analytical pure | Guoyao chemical reagent Co. LTD |
| Sulfuric acid | Analytical pure | Guoyao chemical reagent Co. LTD |
| Hydrochloric acid | Analytical pure | Guoyao chemical reagent Co. LTD |
| Sodium hydroxide | Analytical pure | Guoyao chemical reagent Co. LTD |
| Acetone | Analytical pure | Guoyao chemical reagent Co. LTD |
| Vanillin | Analytical pure | Shanhai jingchun biochemical technology Co. LTD |