Similar names: Nafcillin Sodium; 4-Thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid, 6-[[(2-ethoxy-1-naphthalenyl)carbonyl]amino]-3,3-dimethyl-7-oxo-, sodium salt (1:1), (2S,5R,6R)-; 4-Thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid, 6-(2-ethoxy-1-naphthamido)-3,3-dimethyl-7-oxo-, monosodium salt (8CI); 4-Thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid, 6-[[(2-ethoxy-1-naphthalenyl)carbonyl]amino]-3,3-dimethyl-7-oxo-, monosodium salt, (2S,5R,6R)- (9CI); 4-Thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid, 6-[[(2-ethoxy-1-naphthalenyl)carbonyl]amino]-3,3-dimethyl-7-oxo-, monosodium salt, [2S-(2α,5α,6β)]-; (2S,5R,6R)-6-[[(2-Ethoxy-1-naphthalenyl)carbonyl]amino]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid sodium salt; 6-(2-Ethoxy-1-naphthamido)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid sodium salt; 6-(2-Ethoxy-1-naphthamido)penicillin sodium salt; BRL 1383; Nafcil; Nafcillin sodium salt; Naftopen; Naphthicillin; Sodium 6-(2-ethoxy-1-naphthamido)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylate; Sodium 6-(2-ethoxy-1-naphthamido)penicillanate; Sodium nafcillin; Unipen; Wy 3277