CAS Chem.name Chem.SMILES #Observed Mutagenicity Bioassay - Reference(s) - *10006-00-4 N-(tert-butoxycarbonyl)-S-[2-nitro-1-(2-thienyl)ethyl]-L-cysteine CC(C)(C)OC(=O)NC{P+}(CSC(CN(=O)=O)C1=CC=CS1)C(O)=O in vitro Ames positive Bacterial Reverse Mutation Assay (e.g. Ames Test) Division of Genetic and Mutagenesis, National Institute of Health Science, Japan. ANEI-HOU, AMES/ QSAR International Collaborative Study; http://www.nihs.go.jp/dgm/amesqsar.html.