Mono-ethyl phthalate (ring-1,2-13C2,99%, dicarboxyl-13C2,99%) 100 µg/mL in MTBE Back Catalog number: CLM-4586-MT-1.2 Availability: In the manufacturer's stock Price on request - + Recommended S-4056-750-MXX5 Thiophene/2-Methylthiophene (2:1) in isooctane/Toluene(3:1); Units: 5x1mL ampoules, 1x10mL screw-capped bottle Chiron No. Concentration µgS/g (ppm) Wt.% S-4056-0 Blank 0 S-4056-5 5 Price on request 10276.18-5MG (±)-Betaxolol-d7 hydrochloride (N-iso-propyl-d7) Price on request 52071 Spiking Standard 5 Price on request