EPA 1620 Standard 4 Back Catalog number: 53142 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 73258 Omeprazole, 1000µg/ml in MeOH, 1ml Price on request 678659 S-Metolachlor Metabolite CGA 357704, 100 µg/ml, A Price on request C15089055 2-Methyl-4-isothiazolin-3-one D3 hydrochloride, 10mg Price on request