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 S-4019-SET Saturated Fraction GC Control Set (S-4012 + S-4020) Price on request 58323 Vanadium (V) Price on request 50694 Custom Metal Mix Price on request