N-Acetyl-sulfamethazine, 10mg Back Catalog number: 679289 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 0451.3-150-CY GC-IRMS Standards (C11(?13C: -26.11); C15 (?13C: -30.22); C20 (?13C: -33.06)), 150µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-1, Cas.no. Price on request 96550 Methaqualone-D4 Price on request 683391 4-Methylbenzophenone, 1000mg Price on request