IC Mix Back Catalog number: 54620 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 675721 Heptachlor-exo-epoxide, 10.0 µg/ml, Ethyl acetate Price on request 0060.20-50-T 3-Hydroxybenzo[a]pyrene, 50µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 13345-21-6 Price on request 71897 4-Methylcatechol Price on request