beta-Lactam Antibiotics Back Catalog number: 67017 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended S-4284-CS4 Determination of PAH, Multilevel Standards, Deuterated IS Compound Prod. no. Purity CAS no. CS-1 ng/ml CS-2 ng/ml CS-3 ng/ml CS-4 ng/ml SC-5 ng/ml IS ng/ml 10ml RS ng/ml 0,5ml Naphthalene Price on request 8846.7-K-IO 2-Ethoxy-3-methylpyrazine, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-, Cas.no. Price on request EPA-1613CSL Extended Calibration/Low Level Solution , 500ul, nonane Price on request