Multi-Elements Mix Back Catalog number: 50155 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 65270 Fermentation Standard, in water, 1ml Price on request 1336.12-K-TX5 Acenaphthylene-d8, 1000µg/mL, Solvent-toluene, Unit 1mL, # of units-5, Cas.no. 93951-97-4 Price on request 675828 Desmetryn, 100 µg/ml, Toluene, 5ml Price on request