| No. | VietNamese Name | English Name |
| 1 | (C5H5)2Fe | (C5H5)2Fe |
| 2 | (NH4)2HPO4 | (NH4)2HPO4 |
| 3 | (NH4)2S2O8 | (NH4)2S2O8 |
| 4 | (NH4)2SO4 | (NH4)2SO4 |
| 5 | (NH4)Cl | (NH4)Cl |
| 6 | [Fe(CN)6]4- | [Fe(CN)6]4- |
| 7 | 1,1,1,2-Tetrachloroethane | 1,1,1,2-Tetrachloroethane |
| 8 | 1,1,1-Trichloroethane | 1,1,1-Trichloroethane |
| 9 | 1,1,2,2-Tetrachloroethane | 1,1,2,2-Tetrachloroethane |
| 10 | 1,1-Dichloroethylene | 1,1-Dichloroethylene |
| 11 | 1,2,4-Trimethylbenzene | 1,2,4-Trimethylbenzene |
| 12 | 1,2-cis-Dichloroethylene | 1,2-cis-Dichloroethylene |
| 13 | 1,2-Dibromo-3-chloropropane | 1,2-Dibromo-3-chloropropane |
| 14 | 1,2-Dichlorobenzene | 1,2-Dichlorobenzene |
| 15 | 1,2-Dichloroethane | 1,2-Dichloroethane |
| 16 | 1,2-Dichloroethene | 1,2-Dichloroethene |
| 17 | 1,2-Dichloropropane | 1,2-Dichloropropane |
| 18 | 1,3-Dichlorobenzene | 1,3-Dichlorobenzene |
| 19 | 1,3-Dichloropropanol | 1,3-Dichloropropanol |
| 20 | 1,3-Dichloropropene | 1,3-Dichloropropene |
| 21 | 1,4-Dichlorobenzene | 1,4-Dichlorobenzene |
| 22 | 1,4-Dioxan | 1,4-Dioxan |
| 23 | 1-Vinyl-2-Pyrrolidinone polymers | 1-Vinyl-2-Pyrrolidinone polymers |
| 24 | 2,3-Butanedione | 2,3-Butanedione |
| 25 | 2,3-Pentanedione | 2,3-Pentanedione |
| 26 | 2,4,5-T | 2,4,5-T |
| 27 | 2,4,6-Trichlorophenol | 2,4,6-Trichlorophenol |
| 28 | 2,4-D | 2,4-D |
| 29 | 2,4-DB | 2,4-DB |
| 30 | 2,4-Dimethylphenol | 2,4-Dimethylphenol |