It’s only fair to share… Quinacillin UNII-83NB50X92M Cas 1596-63-0 83NB50X92M Quinacilina MW 416.4 g/mol, MF C18H16N4O6S (2S,5R,6R)-6-[(3-carboxyquinoxaline-2-carbonyl)amino]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid 4-Thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid, 6-(3-carboxy-2-quinoxalinecarboxamido)-3,3-dimethyl-7-oxo- (7CI,8CI) 4-Thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid, 6-[[(3-carboxy-2-quinoxalinyl)carbonyl]amino]-3,3-dimethyl-7-oxo-, [2S-(2α,5α,6β)]- (2S,5R,6R)-6-[[(3-Carboxy-2-quinoxalinyl)carbonyl]amino]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid 3-Carboxy-2-quinoxalinylpenicillanic acid 3-Carboxy-2-quinoxalinylpenicillin 6-(3-Carboxy-2-quinoxalinecarboxamido)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid Penicillin, (3-carboxy-2-quinoxalinyl)- CAS Registry Number: 1596-63-0 CAS Name: (2S,5R,6R)-6-[[(3-Carboxy-2-quinoxalinyl)carbonyl]amino]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid Additional Names: 3-carboxy-2-quinoxalinylpenicillin Molecular Formula: C18H16N4O6S Molecular Weight: 416.41 Percent Composition: C 51.92%, H 3.87%, N 13.45%, O 23.05%, …