EPA 1620 Standard 4 Back Catalog number: 53142 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 58145 Discontinued Price on request C3257.15-K-IO Methyl 9-trans-tetradecenoate, 1000ug/mL in IO, 1m Price on request 0058.24-10MG Dibenzo[a,i]pyrene[5,8]quinone, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 3302-52-1 Price on request