Copper Gluconate
Copper Gluconate is the copper salt of D-gluconic acid, with the empirical formula Cu(C6H11O7)2 and CAS number 527-09-3. It contains approximately 14 percent elemental copper.
The compound is a fine light blue powder that dissolves freely in water to give a clear blue solution. Its gentle taste, low gastric irritation, and broad food regulatory clearance have made it the default copper carrier in human supplements, food fortification, and infant nutrition.
We source bulk Copper Gluconate from top China manufacturers for our partners, working with several of them. The manufacturers are in Shandong, Liaoning and Zhejiang. A smaller requirement can ship in a combined container with other ingredients.
Please send the grade you need, the volume and your destination port, and we will come back with a solution and a price.
or call +86-21-6858 0751
- Packaging
- 25 kg kraft paper bag with PE inner liner
- ISO 9001
- HACCP
- Halal
- Kosher
Specifications
Grades / Types Available: Food Grade
| Item | Specification |
|---|---|
| Appearance | Light blue fine crystalline powder |
| Assay | 98.0–102.0% |
| Copper Content | 13.6–14.3% |
| Loss on Drying | ≤1.0% |
| Reducing Substances | ≤1.0% |
| Chloride | ≤0.05% |
| Sulphate | ≤0.05% |
| Lead | ≤3 mg/kg |
| Arsenic | ≤3 mg/kg |
| Heavy Metals | ≤20 mg/kg |
| Solubility | Freely soluble in water |
| Zinc Content | 12.0%–13.0% |
| Purity | ≥98.0% |
| pH (1% Solution) | 5.0–7.0 |
| Shelf Life | 2 years |
| Storage Conditions | Cool, dry place, sealed packaging. |
| Size | 50-80mesh |
| EINECS | 206-076-3 |
| Formula | C12H22O14Zn |
| Brand | Fuxing |
Common Markets Grades
Copper Gluconate reaches nutrition channels in pharmaceutical and food grade.
USP grade is graded at 97.0 to 102.0 percent assay on the dried basis, with ICH Q3D compliant limits on lead, arsenic, cadmium, and mercury. This grade serves solid oral supplements, liquid drops, and infant nutrition.
FCC food grade meets the same purity profile and is produced with controls on reducing substances and chloride. It is the dominant grade for fortified beverages, cereals, and nutrition bars.
Fine powder grade (D50 of 20 to 50 microns) is preferred for direct-compression tablets and capsule blending.
Spray-dried agglomerated grade is produced for high-speed packaging of stick packs and effervescent tablets.
Copper gluconate is essentially always sold at a single, narrowly defined assay window because the application sectors (supplements, food fortification, infant nutrition) all require pharmacopoeial purity.
Applications
- Multivitamin and multimineral tablets, capsules, and gummies
- Standalone copper supplement formats
- Infant formula and follow-on formula mineral premixes
- Clinical nutrition products for parenteral and enteral feeding
- Fortified cereals, breads, and nutrition bars
- Functional beverages and powdered drink mixes
- Pediatric oral drops and syrups
- Effervescent immune-support tablets paired with zinc and vitamin C
- Mineral premixes for medical nutrition formulas
- Anti-graying hair supplements positioned around copper enzyme support
- Premium pet food and companion-animal supplements
Brands Using Copper Gluconate
Widely-distributed consumer products that list Copper Gluconate on the ingredient label.
- PureBulkCopper Gluconate Powder / Capsules ↗PureBulk Copper Gluconate is sold as a single-ingredient bulk supplement (powder and capsules) providing copper as the gluconate salt for antioxidant, energy, and collagen support.Label verified 2026-05-24
- BulkSupplements.comCopper Gluconate Powder ↗A dietary supplement sold as pure copper gluconate powder.Label verified 2026-05-24
Brand names, product names and logos are the property of their owners. They appear here as published evidence that the ingredient is used, taken from the brand's own label or website. Their appearance is not an endorsement, and it does not mean the brand buys from us or from any manufacturer listed on this site.
China Manufacturers of Copper Gluconate
Top Copper Gluconate manufacturers in China.
- Liao Yang Teng Yuan Food Additive Factory6 ingredients in the directory
Shandong Xinhong Pharmaceutical Co., Ltd.9 ingredients in the directory
Shandong Zhongxing Food Technology Co., Ltd.8 ingredients in the directory
Zhejiang Tianyi Food Additives Co., Ltd.10 ingredients in the directory
Company names and logos are the property of the manufacturers themselves. They are listed here because our own directory records them as producing this ingredient. A listing is not an endorsement by them, and we do not represent them or speak on their behalf.
How We Help Source Copper Gluconate
Direct Factory Sourcing
We run the whole process: selecting the manufacturer from the top Chinese food ingredient producers, negotiating the price, verifying quality, and coordinating the logistics. You deal with us instead of with several factories at once.
Original Packaging and Documents from the Manufacturer
The manufacturer sends your Copper Gluconate out of its own factory in the original packing, through to your destination port. The COA, COO, MSDS, TDS and any certifications reach you from the manufacturer as well.
Free Samples and Lead Time
We send 100 to 500 g free for your own laboratory to test and you cover only the courier, usually within 2 to 3 working days. ETD is usually within 7 to 15 days once the order is confirmed, and we check that date against the factory's own manufacturing schedule before we give it to you.
Combined Shipment
We can load Copper Gluconate together with other ingredients such as Sodium Acetate, Calcium Citrate and Sodium Lactate into one 20' FCL. If your quantity is small, we can also ship LCL.
Regulatory Status
Copper Gluconate is approved as a nutrient source across all major regulatory frameworks.
The U.S. Food and Drug Administration recognises Copper Gluconate as GRAS for use as a nutrient under 21 CFR 184.1260. It is also covered by a United States Pharmacopeia monograph for use in dietary supplements and pharmaceutical preparations.
The European Union authorises Copper Gluconate as a source of copper for food supplements under Annex II of Directive 2002/46/EC, for fortified foods under Regulation (EC) No 1925/2006, and for infant formula and follow-on formula under Regulation (EU) 2016/127.
JECFA has evaluated copper gluconate within its broader assessment of copper compounds and considers it acceptable as a nutrient source for food and supplement use.
Pharmacopoeial monographs appear in the United States Pharmacopeia (USP) and the European Pharmacopoeia (Ph. Eur.). Halal and Kosher certifications are routinely available, as is non-GMO documentation for fermentation-derived gluconic acid.
Manufacturing Process
Copper Gluconate is produced by acid-base reaction of D-gluconic acid with a copper source.
Gluconic acid, manufactured by the aerobic fermentation of glucose with Aspergillus niger, is filtered, decolorised, and concentrated. It arrives as a 50 percent aqueous solution or as glucono-delta-lactone for tighter water control.
The gluconic acid solution is diluted to 20 to 25 percent and warmed to 60 to 80 degrees Celsius. High-purity copper carbonate (basic) or freshly precipitated copper hydroxide is added at the stoichiometric two-to-one molar ratio (gluconate to copper). Carbon dioxide is liberated when copper carbonate is used, supporting end-point control.
The clear blue solution is treated with activated carbon to remove fermentation pigments, polish-filtered, and concentrated under vacuum. Crystallisation is induced by cooling or by ethanol antisolvent precipitation.
The wet cake is washed, dried under vacuum at 40 to 60 degrees Celsius, milled, and packed under low-humidity conditions. Each lot is tested by ICP-MS for heavy metals and by titration for assay.
