Description

5-Keto-D-Gluconic Acid Hemicalcium is a calcium salt derivative of the important biochemical intermediate, 5-keto-D-gluconic acid. This compound is valued for its role as a precursor and intermediate in the synthesis of various fine chemicals and food additives, particularly ascorbic acid (Vitamin C). It is primarily utilized by manufacturers in the pharmaceutical, nutraceutical, and food ingredient industries seeking reliable, high-purity intermediates for their production processes.

Application

• Pharmaceutical Intermediate: A key precursor in the chemical and enzymatic synthesis pathways for L-ascorbic acid (Vitamin C) and its derivatives.
• Nutraceutical Production: Used in the manufacture of dietary supplements and fortified food products requiring Vitamin C or related compounds.
• Food Additive Synthesis: Serves as a starting material for producing certain food-grade acidulants, antioxidants, and preservatives.
• Biochemical Research: Employed as a substrate or standard in enzymatic studies and metabolic pathway research related to carbohydrate metabolism.
• Fine Chemical Synthesis: Acts as a chiral building block for the production of specialty chemicals and complex organic molecules.
• Cosmetic Ingredients: Potential intermediate in the production of skin-care active ingredients with antioxidant properties.

Basic Information

Product Name	5-Keto-D-Gluconic Acid Hemicalcium
CAS No.	3470-36-8
Molecular Formula	C12H18CaO16 • xH2O
Molecular Weight	426.35 g/mol (Anhydrous)
Synonyms	5-Keto-D-gluconic acid calcium salt; Calcium 5-keto-D-gluconate; 5-KDG hemicalcium salt; 2,3,4,5-Tetrahydroxy-5-oxohexanoic acid calcium salt; 5-Oxo-D-gluconic acid calcium salt; D-Arabino-Hexulosonic acid, calcium salt; 5-Keto-gluconate calcium
EINECS	Contact for details

Quality Control

Our 5-Keto-D-Gluconic Acid Hemicalcium is produced under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure it meets high-purity standards suitable for pharmaceutical and food-grade applications. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to guarantee traceability and compliance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area. Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent absorption of atmospheric moisture. Recommended long-term storage temperature is 2-8°C (36-46°F).

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 98.0%
Specific Rotation	Contact for details
Loss on Drying	≤ 2.0%
Heavy Metals	≤ 10 ppm
Residue on Ignition	Contact for details
Microbiological Control	Meets standard for non-sterile products

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