6,7-dihydro-6-mercapto-5h-pyrazolo[1,2-a][1,2,4]triazolium chloride; 6,7-dihydro-6-mercapto-5H-pyrazolo[1,2-a][1,2,4]triazol-4-ium,chloride; Side Chain For Biapenem; 5H-Pyrazolo[1,2-a][1,2,4]triazol-4-ium,6,7-dihydro-6-mercapto-,chloride; Side Chain for Bisapenem; 6-sulfanyl-6,7-dihydro-5H-pyrazolo[1,2-a][1,2,4]triazol-4-ium chloride; Side chain of biapenem; Biapenem side chains; 6,7-dihydro-6-mercapto-5h-pyrazolo(1,2-a)(1,2,4)triazol-4-ium chloride; BIAPENEM SIDE CHAIN