Method 1640Mix A Back Catalog number: 52146 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended C696302-0.5MG Cortisol-9,11,12,12-d4, 0,5mg Price on request 8844.10-K-IO 2-Isobutyl-3,5-dimethylpyrazine and 2-isobutyl-3,6-dimethylpyrazine, Isomer mixture, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-, Cas.no. Price on request 10729.20-K-ME (+)-(S)-Chlorpheniramine maleate,1000 µg base/mL,MeOH,1mL, Price on request