Raw materials
| Name | CAS number |
|---|---|
| OSI-930 | 728033-96-3 |
| Opiranserin | 1441000-45-8 |
| Opium | 8008-60-4 |
| Oportuzumab monatox | 945228-48-8 |
| Oprelvekin | 145941-26-0 |
| Oprozomib | 935888-69-0 |
| Orantinib | 252916-29-3 |
| Orbifloxacin | 113617-63-3 |
| Ordesekimab | 2394931-19-0 |
| Oregovomab | |
| Orelabrutinib | 1655504-04-3 |
| Orgotein | 1569268-91-2 |
| Orilanolimab | 2066544-85-0 |
| Oripavine | |
| Ormeloxifene | 31477-60-8 |
| Ornipressin | 3397-23-7 |
| Orotic Acid | 65-86-1 |
| Orotidylic acid | 2149-82-8 |
| Ortataxel | 186348-23-2 |
| Orteronel | 566939-85-3 |
| Orticumab | 1314241-10-5 |
| Orvepitant | 579475-18-6 |
| Osalmid | 526-18-1 |
| Osanetant | 160492-56-8 |
| Osbond acid | 25182-74-5 |
| Oseltamivir acid | 187227-45-8 |
| Osemitamab | 2460539-61-9 |
| Osilodrostat | 928134-65-0 |
| Osivelotor | 2417955-18-9 |
| Osocimab | 2056878-75-0 |
| Osoresnontrine | 1189767-28-9 |
| OspA lipoprotein | |
| Osugacestat | 1401066-79-2 |
| Otamixaban | 193153-04-7 |
| Otelixizumab | 881191-44-2 |
| Otenabant | 686344-29-6 |
| Otilimab | 1638332-55-4 |
| Otlertuzumab | 1372645-37-8 |
| Ouabain | 630-60-4 |
| osgemcitabine palabenamide | 840506-29-8 |