Benzene/n-Hexane Control Standard Benzene/n-Hexane = 1:2 (Neat 1mL) Back Catalog number: S-4013-1ML Manufacturer: CHIRON AS Availability: 3 weeks Price on request - + Recommended 79888 2,4-Diaminotoluene Price on request 71213 Methyl chloroformate Price on request 92933 EPA Method 525 Pesticide Standard Price on request