QC Standard 4 Back Catalog number: 52087 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 11683.12-100-IO 2,2',3,3'-Tetrachlorobiphenyl ,100 µg/mL,isooctane,1mL, Price on request 33321 1-Heptene Price on request 2283.15-K-IPX5 2,6-Di-(tert-butyl-d9)-4-methylphenol-3,5-d2, OD, 1000µg/mL, Solvent-isopropanol, Unit 1mL, # of units-5, Cas.no. 64502-99-4 Price on request