CAS 96688-41-4 (2R,4S)-2-[(R)-carboxy-[[(2R)-2-[(2-oxoimidazolidine-1-carbonyl)amino]-2-phenylacetyl]amino]methyl]-5,5-dimethyl-1,3-thiazolidine-4-carboxylic acid (HCID 178798733)|Huagongshe