CWA UV 254 Absorbance/ DOC Back Catalog number: 55088 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended S-4520-K-IO Organotin Standard Mixture 4 - Tin Ethyl Derivatives 1x1mL 1000 µg/mL in isooctan1 (based on total mass) Mono-n-butyltin (triethyl) Di-n-butyltin (diethyl) Tri-n-butyltin (monoethyl) Monophenyltin (triethyl) Diphenyltin (diethyl) Triphenyltin (mono Price on request 2518.7-500MG Theophylline, neat, Solvent-neat, Unit 500mg, # of units-1, Cas.no. 58-55-9 Price on request 11686.12-100-IO 2,2',3,6-Tetrachlorobiphenyl,100 µg/mL,isooctane,1mL, Price on request