15658-35-2 3-Pyridinecarboxylic acid, 6,6'-dithiobis- 6, 6'-Dithionicotinic acid 6, 6-Dithiodinicotinic acid 6,6'-Dithiodinicotinic acid AIDS-127168 AIDS127168 CPDS Carboxypyridine disulfide NSC147758 Nicotinic acid, 6,6'-dithiodi-