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Amazon.com: Micro Ingredients Pure Vitamin C Crystal Powder (Water Soluble Vitamin C 1000mg Per Serving), 1 KG (2.2 Pounds), Immune Vitamins and Strong Antioxidant, Pure Ascorbic Acid Powder Supplement : Health & Household
Why is vitamin C called ascorbic acid, when there is no carboxyl group present in its structure? - Quora
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