Ascorbic acid impurity C

Ref. 3D-FA177634

Product Information

• Name: Ascorbic acid impurity C
• Synonyms: D-Sorbosonic acid
• Brand: Biosynth
• Description: Ascorbic acid impurity C is a catalytic impurity found in ascorbic acid-containing pharmaceuticals. It is metabolized to sulfate and iodoacetic acid, the latter of which is excreted in the urine. Ascorbic acid impurity C is also a metabolic product of 5-keto-d-gluconic acid, which can be synthesized from d-glucose or d-mannose. The transferase enzyme catalyzes the conversion of d-glucose to 5-keto-d-gluconic acid, while the enzyme d-mannose oxidoreductase converts d-mannose to 5 keto-d-gluconic acid. This impurity has been found in natural leaf extracts and synthetic ascorbic acids.

Chemical properties

• Molecular weight: 194.14 g/mol
• Formula: C₆H₁₀O₇
• Purity: Min. 95%