IP 391-95 Calibration Level 4 Back Catalog number: 98404 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1296.17-200-T 8-Methylbenzo[b]naphtho[2,3-d]thiophene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 24964-07-6 Price on request 675994 Fenthion-sulfoxide, 100 µg/ml, Toluene, 5ml Price on request 675410 Bufencarb, 100 µg/ml, Cyclohexane, 1ml Price on request