Double ring

antibiotic finishing agent for fabric 5-Acetamidomethyl-4-Amino-2-Methyl pyrimidine Cinmethylin Suprofen Gestrinone S-α-cyano-3-phenoxy benzyl alcohol (1R-cis)-3-(2,2-dibromoethenyl)-2,2-dimethylcyclopropane carboxylic acid Captopril Biperiden optical disk plastics amorphous polyolefine base material