Interference Standard 4 Back Catalog number: 52041A Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2766.11-100-IO 7-Methyl-2-naphthol, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 26593-50-0 Price on request 10835.21-10MG Quetiapine hemifumarate,neat,neat,10mg Price on request 678241 4-Epichlortetracycline hydrochloride, 5mg Price on request