N-Nitrosodiethylamine-d10, 1000µg/ml in dichloromethane, 1ml

3ß,17 alpha(H),21ß(H)-3-Methylhopane, neat, Solvent-neat, Unit ca. 10µg , # of units-1, Cas.no. 126254-83-9

PCB No. 77, 100µg/ml in Isooctane, 1ml

3,3',4,4',5-Pentachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane