Ammonium Standard: NH4+, 1000µg/ml in Water, 100ml Back Catalog number: VHG-INH41K-100 Availability: In the manufacturer's stock Price on request - + Recommended 3149.23-K-IO Tricosanoic acid, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 2433-96-7 Price on request A16995100AL-100 Sulfamerazine, 100µg/mL in Acetonitrile, 1ml Price on request M324775 ß-Methylphenethylamine, 2,5g Price on request