EPA Method 1618 Organochlorine Mix C Back Catalog number: 20138 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 676563 3-Bromo-1,2-propanediol, 100mg Price on request 1748.15-K-IO 3-n-Undecylthiophene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 129607-86-9 Price on request 81504 2,4,5-TP methyl ester Price on request