Dow FR-250, 35 µg/mL in Isooctane, 1ml Back Catalog number: B-250S-0.35X Availability: In the manufacturer's stock Price on request - + Recommended 513-CS0.25 Custom Calibration Solution, 500ul, nonane Price on request 30452 Carbon tetrachloride Price on request 8686.23-100-AN Rotenone Price on request