EPA Method 552 Internal Standard Back Catalog number: 30055 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 678321 1-Propanol, 5ml Price on request 9339.13-100-IO Methyl dihydrojasmonate, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 24851-98-7 Price on request 98596 Ethanol Price on request