PCB Isomers Mix A Back Catalog number: 94274 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 71255 3,4-Dichlorophenol Price on request LCS-4045 LC Caffeine Standards Kit, 6 x 10ml Price on request 1933.4-1MLX10 Acetic anhydride, neat, Solvent-neat, Unit 1mL, # of units-10, Cas.no. 108-24-7 Price on request