BTEX Standard Back Catalog number: 94133 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended BB-7 2,4-Dibromobiphenyl, 1.2ml x 50ug/ml, nonane Price on request 676605 D4-1,4-Dichlorobenzene, 100mg Price on request 677950 Tetrachlorvinphos, 250mg Price on request