Surrogate Mix Back Catalog number: 91986 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended A15935000WL-100 Penicillin G potassium, 100µg/mL in Acetonitrile, 1ml Price on request 2766.11-10MG 7-Methyl-2-naphthol, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 26593-50-0 Price on request 1159.39-10MG n-Nonatriacontane, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 7194-86-7 Price on request