Propachlor Back Catalog number: 8943.11-100-AN Manufacturer: CHIRON AS Availability: 3 weeks Price on request - + Recommended 32003 EPA Method 500 Series Internal Std #4 Price on request 0947.9-K-IO 3-Methylbenzothiophene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 1455-18-1 Price on request 0853.30-100-IO Cycloartane, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 511-64-8 Price on request