BTEX (20 µg/mL) Back Catalog number: 98518 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 673538 4,4'-DDT, 100 µg/ml, Ethyl acetate, 5ml Price on request C10861600 2-Butanol, certified, 5ml Price on request 674654 Iopromide, 100mg Price on request