COD Calibration Standard Back Catalog number: 50451 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 9127.12-K-ME Tri-n-butyltin-d27 chloride, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 1257647-76-9 Price on request PN-54S 1,2,3,6,7-Pentachloronaphthalene, 1.2mL x 50ug/mL, nonane Price on request 680174 Phenylparaben, 25mg Price on request