BTEX Standard Back Catalog number: 92794 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended C12726000 3,3'-Dimethylbenzidine, 100mg Price on request 90291 Perylene-d12 Price on request MHBCD-MXA Mixture of 13C-labelled α-, β-, and γ-HBCD, 1.2ml , toluene Price on request