EPA Method 525 - Phthalate Standard Back Catalog number: 31028 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3175.6-K-IO Ethyl butanoate, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 105-54-4 Price on request 8350.9 1-[2,4-Dinitrophenylhydrazone]pyruvaldehyde, Please inquire, Solvent-, Unit , # of units-, Cas.no. 57965-39-6 Price on request 11081.7-100MG 2,3-Dimethylpyridine,neat,neat,100mg, Price on request