QC Check Sample Back Catalog number: 59250 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 12156.9-100-ME Acetylsalicylic acid-d4 (ring-d4),100 µg/mL,MeOH,1mL, Price on request 98048 Terpenes Standard, 1000µg/ml in MeOH, 1ml Price on request 98496 1,2,3,4-Tetrachlorobenzene Price on request