Robuta

https://pubchem.ncbi.nlm.nih.gov/compound/4-Thia-1-azabicyclo3.2.0heptane-2-carboxylic-acid_-3_3-dimethyl-7-oxo-6-_phenoxyacetyl_amino-_-calci 4-Thia-1-azabicyclo3.2.0heptane-2-carboxylic acid, 3,3-dimethyl-7-oxo-6-(phenoxyacetyl)amino-,... 4-Thia-1-azabicyclo3.2.0heptane-2-carboxylic acid, 3,3-dimethyl-7-oxo-6-(phenoxyacetyl)amino-, calcium salt (2:1), (2S,5R,6R)- chemical information summary. https://pubchem.ncbi.nlm.nih.gov/compound/4-Thia-1-azabicyclo_3.2.0_heptane-2-carboxylic-acid_-3_3-dimethyl-7-oxo-6-_phenoxyacetyl_amino_-_-_2 4-Thia-1-azabicyclo(3.2.0)heptane-2-carboxylic acid, 3,3-dimethyl-7-oxo-6-((phenoxyacetyl)amino)-,... 4-Thia-1-azabicyclo(3.2.0)heptane-2-carboxylic acid, 3,3-dimethyl-7-oxo-6-((phenoxyacetyl)amino)-, (2S-(2alpha,5alpha,6beta)), compound with...