Method 4 Standard 1 Back Catalog number: 93233 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 673681 Propyzamide, 10.0 µg/ml, Ethyl acetate, 10ml Price on request C755392 trans-p-Coumaric-d6 Acid, 5mg Price on request 9318.10-100-AN Clofibric-d4 acid, 100µg/mL, Solvent-acetonitrile, Unit 1mL, # of units-1, Cas.no. 1184991-14-7 Price on request