Carbazole as N Back Catalog number: 98969 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 95808 L(+)Lactic acid Price on request 66104 PCB No. 104, 100µg/ml in Isooctane, 1ml Price on request 72026 6-Propyl-2-thiouracil Price on request