Internal Standard Back Catalog number: 95665 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended Y0000467 Thiamine hydrochloride, 10mg Price on request 3584.17-K-IO 2,4-Diethylthioxanthone, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 82799-44-8 Price on request X9113 Hexachlorobenzene Price on request