[{"from": "human", "value": "Use the given information to create a molecule that fulfills the desired purpose. The molecule has a wide range of uses: in the manufacture of resins and textiles, as a disinfectant, and as a laboratory fixative or preservative. Formaldehyde solution (formalin) is considered a hazardous compound, and its vapor toxic. (From Reynolds, Martindale The Extra Pharmacopoeia, 30th ed, p717)"}, {"from": "gpt", "value": "[C][=O]"}]