Method 508 Calibration Standard Back Catalog number: 94877 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 0148.14-500-IO 4-Ethyldibenzothiophene, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 89816-99-9 Price on request 70865 Triazophos, 1000µg/ml in MeOH, 1ml Price on request 679251 Carbazole, 100mg Price on request