| Product Name | CAS Registry Number | Molecular Formula |
| Indene | 95-13-6 | C9H8 |
| Isoliquiritigenin | 961-29-5 | C15H12O4 |
| 4,4'-Isopropylidenediphenol C12-15 alcohol phosphite | 96152-48-6 | null |
| Iopanoic acid | 96-83-3 | C11H12I3NO2 |
| 2-(1'-Imidazoylsulfonyl)-1,3,5-tri-O-benzoyl-alpha-D-ribofuranose | 97614-42-1 | C29H24N2O10S |
| Itaconic acid | 97-65-4 | C5H6O4 |
| Irinotecan | 97682-44-5 | C33H38N4O6 |
| Isobutyl isobutyrate | 97-85-8 | C8H16O2 |
| Isobutyl methacrylate | 97-86-9 | C8H14O2 |
| 5-Isopropyl-2-pyrimidinamine | 98432-17-8 | C7H11N3 |
| Interferon alfa-2b | 98530-12-2 | C860H1353N229O255S9 |
| 4-Iodobenzenesulfonyl chloride | 98-61-3 | C6H4ClIO2S |
| 4-Isobutylamino-3-nitroquinoline | 99009-85-5 | C13H15N3O2 |
| Imiquimod | 99011-02-6 | C14H16N4 |
| Isophthaloyl dichloride | 99-63-8 | C8H4Cl2O2 |
| 4-Isopropylaniline | 99-88-7 | C9H13N |
| 4-Isopropylphenol | 99-89-8 | C9H12O |