Product Introduction
Calcium Ascorbate DC97 is a buffered, non-acidic mineral ascorbate raw material synthesized via neutralization of L-Ascorbic Acid and calcium carbonate under precise pH, temperature and crystallization control. With CAS No.5743-28-2, molecular formula C₁₂H₁₈CaO₁₄ and minimum 97% assay on dry basis, this DC (direct compression) granular grade eliminates extra wet granulation for tablet production, featuring excellent flowability and compactibility. Unlike acidic pure vitamin C, calcium ascorbate dissociates into ascorbate anions and calcium ions in water and human body, delivering dual nutrition of vitamin C and calcium without stomach irritation, ideal for sensitive stomach formula development.
As a powerful antioxidant, the ascorbate component neutralizes ROS and free radicals, protects lipids, protein and DNA from oxidation damage, and acts as critical cofactor for collagen synthesis. The calcium element supports bone mineralization and cell signal regulation. Our DC97 granular powder strictly controls particle size at 40–100 mesh, stable bulk density and low repose angle, greatly improving high-speed tableting efficiency and reducing production loss for nutraceutical manufacturers. It fully complies with global food and pharmaceutical standards including USP, FCC, EFSA E302 and FDA GRAS, widely used as antioxidant preservative and nutrition fortifier across food, dietary supplement and cosmetic industries.
Technical Specification
| Item | Standard Value | Test Method |
|---|---|---|
| Appearance | White to yellowish granular powder | Visual |
| Assay (on dry basis) | 97.0%–101.0% | USP/FCC |
| Loss on Drying | ≤1.0% | Gravimetry |
| pH (1% aqueous solution) | 6.0–8.0 | pH meter |
| Heavy Metals (as Pb) | ≤10 mg/kg | ICP‑MS |
| Arsenic (As) | ≤2 mg/kg | ICP‑MS |
| Particle Size | 95% between 40–100 mesh | Sieve analysis |
| Bulk Density | 0.55–0.75 g/cm³ | USP <616> |
| Tapped Density | 0.70–0.90 g/cm³ | USP <616> |
| Angle of Repose | ≤35° | Flow test |
Safety Profile
Calcium Ascorbate DC97 is low-hazard raw material for food, supplement and cosmetic industrial production.
- - Acute Oral Toxicity: Rat LD₅₀＞5000mg/kg, non-toxic under standard industrial usage
- - Skin Contact: Slight irritant; rinse skin thoroughly with clean water after exposure
- - Eye Contact: Mild irritation risk; flush eyes with running water for minimum 15 minutes - Inhalation: Avoid dust inhalation; move to well-ventilated fresh air if dust inhaled
- - Environmental Impact: Non-hazardous to aquatic organisms; prohibit direct discharge into waterways
Global Regulatory Certifications: ISO9001, GMP, Kosher, Halal, Non-GMO, Vegan, Gluten-Free, Dairy-Free; complete MSDS, allergen-free statement supplied.
Applications
Food Industry Grade Application
1. Antioxidant & Anti-Browning Preservative Approved food additive INS E302, used in canned drinks, fruit juice, jam, processed fruits to restrain oxidation and enzymatic browning, extend shelf life with compliant dosage following regional food regulations.
2. Dual Nutrition Fortificant Fortify dairy, bakery, functional beverages to add both vitamin C and calcium; not applicable for infant formula without official regulatory approval.
Pharmaceutical & Nutraceutical Raw Material
1. Oral Dietary Supplement Raw Material Perfect direct compression material for vitamin C calcium tablets, capsules and bulk powder supplements, suitable for adults and children over 3 years old under standard dosage guidance.
2. Solid Formulation Stabilizer Work as antioxidant excipient to stabilize oral solid drugs; not recommended for injection pharmaceutical products.
Personal Care & Cosmetic Ingredient
Natural antioxidant for skincare, hair care and body care formulas; mild pH regulator for cosmetic chemical system, brightening skin by reducing free radical damage.
Why Choose Dowell
- Stable DC Grade Granulation Performance Self-developed proprietary granulation process guarantees consistent particle distribution, superior flowability and compressibility, matching high-speed tablet presses and cutting production downtime.
- Strict Full-Set Quality Control Full traceable testing from raw material input to finished goods delivery; heavy metal, arsenic and microbial indicators exceed international USP/FCC limits, complete COA, heavy metal test reports available for each batch.
- Complete Global Regulatory Dossiers Ready documentation for USP, FCC, EU EFSA and US FDA market registration, supporting your factory audit and customs clearance worldwide.
- Customized One-Stop Service Flexible packaging options (1kg aluminum foil bag, 25kg fiber drum), private label OEM & customized particle size adjustment for special formulation demands.
- Stable Global Supply Chain Large-scale standardized production base and mature international logistics system, guarantee on-time delivery to North America, Europe, Southeast Asia, Australia and Middle East.
Delivery and Shipping Service
Storage: Store in a dry, cool, and well-ventilated place.
Packaging: 1 kg/bag, 25 kg/drum
Delivery Time: 7 days after order placement
1.Express Delivery
3-5 days for shipments under 100 kg
Door-to-door service
2.Ocean Freight
Over 300 kg: Approximately 30 days. Port-to-port service requires a professional customs clearance agent.
3.Air Freight
100kg-1000kg, 5-7 days
Airport-to-airport service, requires a professional customs clearance agent
Frequently Asked Questions
Q1:What does DC97 stand for in Calcium Ascorbate DC97?
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A: DC refers to Direct Compression grade, 97 means the minimum assay content of calcium ascorbate reaches 97% on dry basis. This granular grade is specially optimized for tablet pressing without extra wet granulation process.
Q2: Is Calcium Ascorbate DC97 suitable for sensitive stomach supplements?
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A: Absolutely. It is a neutral buffered non-acidic vitamin C source, will not lower gastric pH value, effectively avoid stomach acid burning discomfort caused by pure L-Ascorbic Acid, the top choice for sensitive stomach oral VC calcium supplements.
Q3: What is the shelf life and proper storage condition?
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A: 24 months shelf life when stored in sealed original packaging, dry, cool, ventilated warehouse, away from direct sunlight and high temperature environment.
Q4: Can this DC97 calcium ascorbate be used for vegan, halal and kosher finished products?
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A: Yes. Our product is certified Kosher & Halal, Non-GMO, Vegan, Gluten-Free, Dairy-Free, no animal-derived raw materials added, fully fit vegan and religious compliant finished goods production.
Q5: What shipping methods & delivery time can you offer?
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A: We support international express (DHL/UPS/FedEx/TNT), air freight and sea freight. Small orders under 100kg: 3–5 days door-to-door express; 100–1000kg air freight: 5–7 days airport-to-airport; bulk goods over 300kg sea freight: 15–35 days port-to-port, professional customs clearance support provided. Standard order lead time: 7 working days after deposit confirmation.
Send inquiry or contact us to get free sample, and learn more details about it.
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