QC Standard 4 Back Catalog number: 53087 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 0490.8-K-IO 2,2'-Dithienyl, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 492-97-7 Price on request S-4386-ASS-MEX5 S-4386 VOC Standard Mixture 2 0711,10 Naphthalene 0.200 mg/L 1264,7 Toluene 0.400 mg/L 1300,6 Benzene 0.400mg/L 1266,8m-Xylene 0.20 Price on request 8483.19-500MG Metoprolol tartrate, neat, Solvent-neat, Unit 250mg, # of units-1, Cas.no. 56392-17-7 Price on request