Aroclor 1221 in Transformer Oil Back Catalog number: 61221 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3428.12-100-CY Isofenphos-des-N-isopropyl Price on request 10864.10-100-ME Serotonin-13C2,15N hydrochloride (ethylamine-13C2,15N),100 µg base/mL,MeOH,1mL Price on request 673388 Metsulfuron-methyl, 10 µg/ml, Acetonitrile, 10ml Price on request