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  1. Methylene (compound) - Wikipedia

  2. Methylene (CH2) - Structure, Molecular Mass, Properties and Uses

  3. Active Methylene Compound - Chemistry LibreTexts

  4. Methylene (compound) - Wikiwand

  5. Methylene | CH2 | CID 123164 - PubChem

  6. Methylene - (Organic Chemistry) - Vocab, Definition ...

  7. Methylene - NIST Chemistry WebBook