Crossword clues for Laboratory substance. 7 letters:REAGENTLaboratory substance.GASESLaboratory substances.ACIDSLaboratory substances.SERALaboratory substances.SERUMLaboratory substance.CHEMICALLaboratory substanceACIDLaboratory substance.AGARLaboratory substance.ESTERLaboratory substance.SUBLIMATEPurify (a substance) by laboratory process.MEDIASubstances used for laboratory cultures.