Molecular structures of slow H2S-releasing agents with potential anti-inflammatory properties for the treatment of arthritis. ADT-OH (5-(4-hydroxyphenyl)-3H-1,2-dithiole-3-thione) and ATB-429 ([4-(5-sulfanylidenedithiol-3-yl) phenyl] 5-amino-2-hydroxybenzoate) are H2S-releasing derivatives of mesalamine. ATB-337, ATB- 343, and ATB-345 are respectively diclofenac, indomethacin, and naproxen linked to a hydrogen sulfide-releasing moiety. ATB-346 is naproxen covalently linked to 4-hydroxythiobenzamide (TBZ). ACS-14 is aspirin linked to H2S donors, ACS-21 is deacetylated aspirin linked to H2S donors, and NBS1120 is a NO H2S-releasing derivative of aspirin. GYY4137—morpholin-4-ium 4 methoxyphenyl phosphinodithioate; DAS—diallyl sulfide.