| # | Species | Formula |
| 4516 | cis-Sr(II)(H2O)4.F2 | H8O4F2Sr | |
| 4517 | cis-Sr(II)(H2O)4.F2 (Geo) | H8O4F2Sr | |
| 4518 | Sr(II)N6F3 (UDIRAA) (Geo) | C20H20B2N12F8Sr | |
| 4519 | Sr(II)O4N4 (NUPSAS) (Geo) | C30H18N4O4F12Sr | |
| 4520 | Sr(II)O8(2-) (RIZHAJ) (Geo) | C20H16O8F12Sr | |
| 4521 | Sr(II)O8(2-) (RIZHAJ) | C20H16O8F12Sr | |
| 4522 | Strontium sulfide (Geo) | SSr | |
| 4523 | Strontium sulfide | SSr | |
| 4524 | Sr(II)O4S2 (YUGMOC)a (Geo) | C28H42O4S2Sr | |
| 4525 | Sr(II)O4S2 (YUGMOC)a | C28H42O4S2Sr | |
| 4526 | Sr(II)O6N2 (FUYDAE) (Geo) | C10H20N2O6S2Sr | |
| 4527 | Sr(II)O6N2 (FUYDAE) | C10H20N2O6S2Sr | |
| 4528 | Strontium chloride | ClSr | |
| 4529 | Sr(II)(H2O)5.Cl | H10O5ClSr | |
| 4530 | Sr(II)(H2O)5.Cl (Geo) | H10O5ClSr | |
| 4531 | Strontium dichloride, cation | Cl2Sr | |
| 4532 | Strontium dichloride (Geo) | Cl2Sr | |
| 4533 | Strontium dichloride | Cl2Sr | |
| 4534 | cis-Sr(II)(H2O)4.Cl2 | H8O4Cl2Sr | |
| 4535 | cis-Sr(II)(H2O)4.Cl2 (Geo) | H8O4Cl2Sr | |
| 4536 | Strontium monobromide (Geo) | BrSr | |