QC Standard 4 Back Catalog number: 53087 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 70496 4-Nitroquinoline-1-oxide Price on request 11873.12-100-ME (±)-Fipronil,100 µg/mL,MeOH,1mL, Price on request 5PMBDE99 2,2',4,4',5-Pentabromo-5'-methoxydiphenyl ether, 1.2ml x 50ug/ml, nonane Price on request