Retention Time Marker Standard Back Catalog number: 93609 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended T898210 Tylvalosin, 1mg Price on request 2551.18-100-ME O-Acetylsalicylic anhydride, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 1466-82-6 Price on request 680029 Azoxystrobin Metabolite R402173, 100 µg/ml, Aceto Price on request