| 1 | At present, the red sun of the Group's production of pyridine for the main use. | |
| 2 | Who have mastered the production of pyridine technology, will have the equivalent of a printing press. | |
| 3 | The typical K-F reagent has disadvantage of high poisonousness and pyridine malodor. | |
| 4 | Use:Used as an embedding medium in diatoms assay, to examine pyridine, to determine hydroxy , and to identify tertiary amine. | |
| 5 | Commercially available reagents containing solvents or bases other than pyridine or alcohols other than methanol may be used also. |