Carl Roth GmbH + Co.KG supplies laboratory needs, chemicals and life science products. Carl Roth Carl Roth GmbH + Co.KG supplies laboratory needs, chemicals and life science products. Carl Roth products includes Biological chemicals, Biological buffers, Nucleotides, Acids, Solvents, Labware, containers, disposables & materials, Pumps, pipettors & sampling, pptical instruments & lamps, measuring instruments, etc.