Vitamin C Sodium Ascorbate

Sodium ascorbate (CAS 134-03-2), also sold under the food additive designation E301, is the sodium salt form of ascorbic acid used commercially as an antioxidant and preservative.

Where is Vitamin C Sodium Ascorbate used?

• Food processing: prevents oxidative discoloration and rancidity in cured meats and beverages
• Curing accelerator alongside nitrites in packaged goods
• Pharmaceuticals: stable, non-acidic vitamin C source in tablet, powder, and injectable formulations
• Cosmetics and personal care: antioxidant stabilizer in serums, creams, and topical formulations
• Food supplements: direct vitamin C source in effervescent tablets, sachets, and functional drink mixes
• Unlike ascorbic acid, it offers a neutral pH profile suitable for sensitive formulations where acidity must be controlled.

Good to know: Unlike ascorbic acid, it offers a neutral pH profile suitable for sensitive formulations where acidity must be controlled.

Commercial specifications

• Food-grade (FCC), USP, BP, and Ph. Eur. grades; pharmaceutical grades subject to stricter purity thresholds
• Bulk supply typically in 25 kg bags or fiber drums