MCPA Back Catalog number: 79523 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended PN-20S 1,3,6-Trichloronaphthalene, 1.2mL x 50ug/mL, nonane Price on request 4PM79 3,3',4',5-Tetrachloro-4-methoxybiphenyl, 1.2ml x 50ug/ml, nonane Price on request 684515 Atrazine-2-hydroxy, 10.0 µg/ml, Methanol, 10ml Price on request