Metribuzin, 1000µg/mL in MeOH, 1ml

Isovaleraldehyde-DNPH, 100µg/ml in Acetonitrile, 1ml

2-Nitrophenol-3,4,5,6-d4, 1000µg/mL, Solvent-isopropanol, Unit 1mL, # of units-5, Cas.no. 93951-78-1

Thiophene in Toluene Units: 5x1mL ampoule, 1x10mL screw-capped bottle Chiron No. Concentration µgS/g (ppm) Wt.% S-4053-0 Blank 0 S-4053-K 1 000 0.1000 S-4053-2.5K 2 500 0.2500 S-4053-5K