Interference Standard 4 Back Catalog number: 52041A Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1583.30-600-DP Betulin, 600µg/mL, Solvent-diisopropyl ether, Unit 1mL, # of units-1, Cas.no. 473-98-3 Price on request 92253 Ethanol Price on request S-4381-K-5ME ISO 17353/23161 Internal Standard OC, Stock Solution B 4 Analytes, each 1000µg/mL OC in methanol; units: 5x1mL, 5x5mL Prod.No. Compound CAS No. Weight OCT 2496.14 Di-n-heptyltin dichloride [7434 Price on request