Ammonium Standard: NH4+, 1000µg/ml in Water, 100ml Back Catalog number: VHG-INH41K-100 Availability: In the manufacturer's stock Price on request - + Recommended 3515.6-100-AN Thiram, 100µg/ml in Acetonitrile, 1ml Price on request 683379 Tylosin tartrate, 250mg Price on request 96550 Methaqualone-D4 Price on request