The Complete List of Suppliers for (2S,5R,6R)-6-[[2-amino-2-(4-hydroxyphenyl)acetyl]amino]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid; 4-[(3-carboxy-2-hydroxy-naphthalen-1-yl)methyl]-3-hydroxy-naphthalene-2-carboxylic acid