Retention Time Verification Standard Back Catalog number: 51136 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 10412.4-100-ME Sodium DL-3-hydroxybutyrate-3,4,4,4-d4 Price on request 1758.27-50-IO 22,29,30-Trisnorhop-17(21)-ene, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 65132-06-1 Price on request 72401 Antipyrine, 1000µg/ml in MeOH, 1ml Price on request