laboratory reagents - microbiology - kits / microbiological identification tests - ONP / ONPG strips, kit x50tests, for detection of beta-galactosidase, indole production (by addition of IND reagent code C53MR1018) or tryptophan deaminase (by addition of PHE reagent code C53MR1023), CE mark, todylaboratories®, code C53MR1012