D-isoascorbic acid CAS 89-65-6 is a natural, green, and efficient food antioxidant that plays a significant role in improving food stability and extending storage life. D-isoascorbic acid, as an isomer of Vc, has many similarities in chemical properties with Vc, but as an antioxidant, it also has advantages that Vc does not possess. Firstly, its antioxidant properties are superior to Vc. Therefore, when used in combination with VcChemicalbook, it can effectively protect the medicinal components of Vc, improve its medicinal properties, and protect the color of Vc. Secondly, it has high safety and no residue in the human body. After ingestion, it participates in metabolism and can be partially converted into Vc. In recent years, as an auxiliary medical material, it has been applied in Vc tablets, Vc Yinqiao tablets, and Vc health products, achieving good results.

Chinese name: D-isoascorbic acid

Chinese synonym: D-2,3,5,6-tetrahydroxy-2-hexenoic acid gamma lactone; Isoascorbic acid standard; D-isoascorbic acid; Isovitamin C; D-2,3,5,6-Tetrahydroxy-2-hexenoic acid- γ- Lactone; Isovitamin C; D (-) – Isoascorbic acid; D-Isovitamin C

English name: ErythorbicAcid

Synonyms in English: 2,3-dihydro-d-erythro hexono-1,4-lactone; FEMA241Chemicalbook0; ISOASCORBICACID; ISOVITAMINC; 3-keto-d-erythro hexonicacigamma lactone; Araboascorbicid; D-arabino-ascorbicicid; D-erythro-3-ketohexonicacidactone

CAS number: 89-65-6

Molecular formula: C6H8O6

Molecular weight: 176.12

EINECS number: 201-928-0

Physical and chemical properties

D-isoascorbic acid is a white or slightly yellow crystalline particle or powder that is easily soluble in water (with a solubility range of about 30%) and alcohol. A 1% aqueous solution with a pH value of 2.8 has a strong reducing effect on Chemicalbook, which gradually changes color and decomposes when exposed to light or heated. Heavy metal ions promote its decomposition. Stable in a dry state, but quickly decomposes in aqueous solution when exposed to air.

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