Vitamin C Calcium Ascorbate

Calcium ascorbate dihydrate (CAS 5743-28-2) is a calcium salt form of vitamin C used as an antioxidant and preservative. E302.

Where is Vitamin C Calcium Ascorbate used?

• Food manufacturing: prevents oxidative discoloration and rancidity
• Processed fruits, beverages and meat products where pH neutrality is a formulation requirement
• Pharmaceuticals: vitamin C source in effervescent tablets and chewables
• Dietary supplements where gastric tolerability is a product differentiator
• Animal feed: stabilized ascorbate source that resists degradation during pelleting and storage
• Crop nutrition and agrochemicals: bioavailable calcium-vitamin C source in foliar sprays
• Unlike ascorbic acid, it delivers vitamin C in a buffered, non-acidic form.

Good to know: Unlike ascorbic acid, it delivers vitamin C in a buffered, non-acidic form, suiting acid-sensitive formulations and mineral-fortified products. Its stability makes it superior to free ascorbic acid in many industrial feed applications.

Commercial specifications

• Bulk supply typically in 25 kg bags
• Specifications vary by purity level and intended regulatory market