BTEX Standard Back Catalog number: 94133 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 10571.13-K-IO 9-Fluorenone-d8 Price on request 680187 Trinitroglycerin, 100 µg/ml, Acetonitrile, 1ml Price on request 673097 5,5-Diphenylhydantoin, 250mg Price on request