PRODUCTS
| Product name | CAS NO. | Grade |
| Naphthol green B | 19381-50-1 | Biological stain |
| Phenol red，sodium salt | 34487-61-1 | Biological stain |
| Vanillin | 121-33-5 | Biological stain |
| Coumarin | 91-64-5 | Biological stain |
| 1-(2-Pyridylazo)-2-naphthol | 85-85-8 | Biological stain |
| 4-(2-pyridylazo)resorcinol | 1141-59-9 | Biological stain |
| Bromocresol green，sodium salt | 62625-32-5 | Biological stain |
| Azure II eosin | 53092-85-6 | Biological stain |
| 3-Indolybutyric acid | 133-32-4 | Biological stain |
| Oxalic acid | 6153-56-6 | Analytical reagent |