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  1. Formaldehyde - Wikipedia

  2. Formaldehyde | H2CO | CID 712 - PubChem

  3. Formaldehyde and Cancer Risk | American Cancer Society

  4. Formol Definition & Meaning - Merriam-Webster

  5. Formaldehyde - chemeurope.com

  6. Formaldehyde - Overview | OSHA.gov - Occupational Safety and ...

  7. Difference Between Formalin and Formaldehyde - Pediaa.Com