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  1. Citric acid - Wikipedia

  2. Citric Acid | C6H8O7 | CID 311 - PubChem

  3. Citric Acid Formula & Structure - Purdue University

  4. Citric acid | C6H8O7 - ChemSpider

  5. Citric Acid - Structure, Properties, Uses of C6H8O7 - BYJU'S

  6. Citric Acid - Encyclopedia.com

  7. Citric Acid FormulaStructure, Properties, Uses, Sample Questions

  8. Citric acid | Description & Properties | Britannica

  9. Citric Acid | Formula, Properties & Application - Material Properties

  10. Structure of Citric acid (C6H8O7) - Mol-Instincts