Ammonia as N Back Catalog number: 54113 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1752.15-500-IO 4-Ethyl-6-methyldibenzothiophene, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 132034-90-3 Price on request MPFHXA Perfluoro-n-[1,2-13C2]hexanoic acid, 50µg/ml in MeOH, 1,2ml Price on request 13800-0280-100IO5 Phthalic acid, di-n/iso-C7-11-alkyl esters, 100µg/ml in Isooctane, 5ml Price on request