Multi-Element Internal Standard Back Catalog number: 59502 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 70904 Dichlorofluoromethane Price on request 11768.12-100-IO 2,3,3',4,5,5',6-Heptachlorobiphenyl ,100 µg/mL,isooctane,1mL, Price on request 681352 Quinclorac-methyl, 100mg Price on request