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 0610.29-100-IO ß alpha alpha (20R,24R)-24-Ethylcholestane, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 4705-29-7 Price on request 79413 n-Tetracontane Price on request 2095.20-K-IO Bis(2-n-butoxyethyl) phthalate, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 117-83-9 Price on request