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Citric acid - Wikipedia
Citric Acid | C6H8O7 | CID 311 - PubChem
Citric Acid Formula & Structure - Purdue University
Citric acid | C6H8O7 - ChemSpider
Citric Acid - Structure, Properties, Uses of C6H8O7 - BYJU'S
Citric Acid - Encyclopedia.com
Citric Acid Formula – Structure, Properties, Uses, Sample Questions
Citric acid | Description & Properties | Britannica
Citric Acid | Formula, Properties & Application - Material Properties
Structure of Citric acid (C6H8O7) - Mol-Instincts