2-hydroxy-3-methylpentanoic acid, >95%, 50mg

S-4393-1 B[a]P/HCB Calibration Standard 2 (solvent : n- Nonane) Product S-4393-1 S-4393-2 S-4393-3 S-4393-4 S-4393-5 1356,6 Hexachlorobenzene 0,01 µg/mL 0,05 0,1

1,2,3,4,6,7,8-Heptabromodibenzofuran,50 µg/mL,n-nonane,1mL,

Ametryn, 100μg/mL in Acetonitrile, 1ml