4,4'-DDT, 100 µg/ml, Ethyl acetate, 5ml Back Catalog number: 673538 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended ENISO9377-2-1 Diesel#2/Mineral Oil Std, 10mg/mL in Hexane,1ml Price on request Q147 Fluorescent Brightener Agent OB-2 [4,4''-Bis(5-methyl-2-benzoxazolyl)stilbene], 97%, 5g Price on request 2178.12-K-IO 2,4'-Difluorodiphenyl ether, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 863315-03-1 Price on request