Ampicillin,neat,neat,250mg, Back Catalog number: 11634.16-250MG Manufacturer: CHIRON AS Availability: In the manufacturer's stock Price on request - + Recommended 73569 Fenthion-oxon-sulfone Price on request 82522 EPA Method 8250 Price on request S-4053-2.5K-10T 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 Price on request