Description

3-Keto-D-Gluconic Acid, Hemicalcium Salt is a specialized biochemical intermediate derived from the oxidation of D-glucose. This compound matters for its role as a key precursor in the synthesis of high-value compounds like erythorbic acid (isoascorbic acid) and as a chelating agent in various formulations. It is primarily needed by manufacturers in the food & beverage, pharmaceutical, and industrial chemical sectors seeking reliable, high-purity raw materials for production and research.

Application

• Food Antioxidant Synthesis: A critical intermediate in the commercial production of erythorbic acid and its sodium salt, widely used as a food preservative and antioxidant.
• Pharmaceutical Intermediates: Serves as a key building block in the synthesis of certain vitamin C derivatives and other active pharmaceutical ingredients (APIs).
• Chelating Agent: Utilized in formulations requiring metal ion sequestration, such as in certain cleaning products or water treatment applications.
• Biochemical Research: Employed as a substrate or standard in enzymatic studies and metabolic pathway research within life science laboratories.
• Cosmetic Additives: Potential use in the production of skin-care product ingredients due to its derivative's antioxidant properties.
• Industrial Fermentation: Can be involved in microbial fermentation processes for the production of organic acids and other fine chemicals.

Basic Information

Product Name	3-Keto-D-Gluconic Acid, Hemicalcium Salt
CAS No.	207614-23-1
Molecular Formula	C12H18CaO16 (for the hemicalcium salt dimer)
Molecular Weight	482.34 g/mol (for the hemicalcium salt dimer)
Synonyms	3-Keto-D-gluconic acid calcium salt; Calcium 3-ketogluconate; D-Gluconic acid, 3-oxo-, calcium salt; 3-Oxogluconic acid hemicalcium salt; 3-Ketogluconic acid calcium salt; 2,3,4,5-Tetrahydroxy-6-oxohexanoic acid hemicalcium salt; KDG calcium salt
EINECS	Contact for details

Quality Control

Our 3-Keto-D-Gluconic Acid, Hemicalcium Salt is produced under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets high-purity standards suitable for food, pharmaceutical, and industrial applications. Certificates of Analysis (COA) documenting purity, identity, and specific impurities are available upon request to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); the container must be kept tightly sealed to prevent absorption of atmospheric moisture which may affect quality.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 5.0%
pH (5% solution)	6.0 - 8.0
Heavy Metals (as Pb)	≤ 10 ppm
Residue on Ignition	Contact for details

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.