BTEX (10 µg/mL) Back Catalog number: 98517 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 13700-0155-1000WS Trifluoroacetic acid, 1000µg/ml in Water, 5ml Price on request 682464 2,5-Hexanedione, 1000mg Price on request 675798 Azodyes-Mix 1, 10.0 µg/ml, Acetonitrile, 1ml Price on request