EPA Method 525 - Internal Standard Back Catalog number: 30031 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 677712 1-Methylnaphthalene, 10.0 µg/ml, Acetonitrile, 1 Price on request 0726.12-K-IO 1,7-Dimethylnaphthalene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 575-37-1 Price on request 678023 D5-Enrofloxacin hydrochloride, 10mg Price on request