"sulfa drug derived from pyridine and sulfanilamide"@en-us . "04352906-n"^^ . . "sulfapyridine"@en-us . . . "104352906"^^ . . "sulfapyridine"^^ . "0"^^ . "0"^^ . . . . . "103440319"@en-us . . "104184765"@en-us . .