Tremelimumab is a cytotoxic T-lymphocyte-associated antigen-4 (CTLA-4) blocking antibody.Tremelimumab is often used in combination with Durvalumab for the treatment of solid cancers such as hepatocellular carcinoma and lung cancer.

Ribonuclease A (RNase A) is a potent endonuclease that removes RNA during dna and protein preparation.

Alpha-Hydroxyisobutyric acid is a metabolite of methyl tert-butyl ether (MTBE). MTBE may be obtained through environmental exposure. MTBE is rapidly eliminated from the body mainly through expired air as the unchanged compound. MTBE is to some extent metabolised to t-butyl alcohol (TBA) and formaldehyde and oxidised to 2-methyl-12-propanediol and a-hydroxy isobuturic acid. Alpha-Hydroxyisobutyric acid has been used as an arial bactericide.