Retention Time Verification Standard Back Catalog number: 51172 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 12146.9-100-ME Heptenofos,100 µg/mL,MeOH,1mL, Price on request 58145 Discontinued Price on request 10415.4-K-ME Sodium DL-2-hydroxybutyrate-2,3,3-d3 Price on request