Photoresist Chemicals (6R,7S)-7-[[(5R)-5-amino-5-carboxy-pentanoyl]amino]-3-(hydroxymethyl)-7-methoxy-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid Cas：58301-37-4 Molecular Formula：C15H21N3O8S