Synonyms: Benzenesulfonamide,N-[(butylamino)carbonyl]-4-methyl-, monosodium salt (9CI); Urea,1-butyl-3-(p-tolylsulfonyl)-, monosodium salt (8CI); Urea,1-butyl-3-(p-tolylsulfonyl)-, sodium deriv. (6CI,7CI); Orinase Diagnostic;Sodium orinase; Sodium tolbutamide; Sodium,[[(butylamino)carbonyl][(4-methylphenyl)sulfonyl]amino]-; Tolbutamide sodium