Internal Standard for AB SIM Back Catalog number: 94516 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended D484700 Diosgenin, 5g Price on request 679809 Sulfadimethoxine, 100 µg/ml, Methanol, 1ml Price on request 2140.4-1ML tert-Butanol, neat, Solvent-neat, Unit 1mL, # of units-1, Cas.no. 75-65-0 Price on request