Benzene [50 ppm] Back Catalog number: 98234 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 0622.27-K-IO alpha alpha alpha (20R)-Cholestane, 1000µg/mL in Isooctane, 1ml Price on request 5TCDD 2378-TCDD Specificity Mix for DB5/BP5/HP2/Rtx-5/SPB-5 , 1.2ml, nonane Price on request 675770 Leptophos, 100 µg/ml, Ethyl acetate, 5ml Price on request