Butyl 4-hydroxybenzoate, Lexgard B, butylbutex, butoben, Nipabutyl, preservalb, n-butyl para-hydroxybenzoate, n-butylparaben, solbrolb, FEMA 2203, n-butyl 4-hydroxybenzoate, SPF, butyl para-hydroxybenzoate, tegoseptb, 4-hydroxybenzoic acid-n-butyl ester, Benzoic acid, 4-hydroxy-, butyl ester, Butyl 4-hydroxybenzoate ; ISOBUTYL PARABEN