EPA Method 8141 Standard Back Catalog number: 92353 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 681185 Sulfentrazone, 10.0 µg/ml, Acetonitrile, 10ml Price on request 674944 D5-Cetylpyridinium bromide, 100mg Price on request 0848.22-100-IO 20-Methyl-5 alpha(H)-pregnane, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 5737-19-9 Price on request