NWTPH-Gx Surrogate Mix Back Catalog number: 51139 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 8840.9-K-IO 2-Propyl-3,5-dimethylpyrazine and 2-Propyl-3,6-dimethylpyrazine, Isomer mixture, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-, Cas.no. Price on request DPE-74 2,4,4',5-Tetrachlorodiphenyl ether, 1.2ml x 50ug/ml, nonane Price on request 3593.55-5MG Chlorophyll A Price on request