Tartrazine, certified, 0.25g Back Catalog number: C17138000 Availability: In the manufacturer's stock Price on request - + Recommended S-4054-5K-XYX5 Dibenzothiophene in Xylene Units: 5x1mL ampoule, 1x10mL screw cap bottle Chiron No. (Matrix) Concentration Isooctane Xylene White oil 3 cst µgS/g (ppm) Wt.% S-4055-0-IO S-4054-0-XY S Price on request 680063 1,4-Dibromobenzene, 100mg Price on request C15201000 Metronidazole, certified, 0.25g Price on request