Multi-Element Internal Standard Back Catalog number: 59502 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 15900-2660-100CY5 Hexachlorobenzene (HCB), 100µg/ml in CY, 5ml Price on request XA16440000AL Propazine, 100µg/mL in Acetonitrile, 1ml Price on request 11919.13-100MG Ambroxol hydrochloride,neat,neat,100mg, Price on request