2,2,4-Trimethyl-6(2H)-quinolinone, 5mg Back Catalog number: 674459 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 73544 delta-Valerolactam Price on request S-4057-K-TX5 Sulfur Calibration Stock Solution Thiophene 1000 µg/mL in Toluene; unit: 5x1mL ampoules Please request for diluted samples in the range 1 to 1000 ng/mL. Price on request 11856.18-K-MEX5 O,O,O-Triphenyl phosphorothionate,1000 µg/mL ,MeOH,1mL, Price on request