Verification II Standard 1 Back Catalog number: 53019 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 19394 EPA Method 8021B Internal Standard Price on request 8766.38-100MG Clarithromycin, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 81103-11-9 Price on request 679795 Difloxacin hydrochloride, 100 µg/ml, Methanol, 1 Price on request