Pentachloro[13C6]phenol, 1.2ml x 100ug/ml, isooctane

2,2',3',4,4',5,6'-Heptachloro-3-methoxybiphenyl, 1.2ml x 50ug/ml, nonane

EPA 1653 Chlorocathecols 7 Analytes, each 100µg/mL in methanol; unit: 1x1mL 4-Chlorocatechol [2138-22-9] 3,4-Dichlorocatechol 3,6-Dichlorocatechol 4,5-Dichlorocatechol [3428-24-8] 3,4,5-Trichlorocatechol 3,4,6-Trichlorocatechol Tetrachlorocatechol [

pH 7.01 buffer solution (box of 25x20mL sachet)