Calcium sorbate
CAS Number
7492-55-9
EC Number
231-321-6
E Number
E203
What is Calcium sorbate?
Calcium sorbate (CAS 7492-55-9), also designated E203, is the calcium salt form of sorbic acid used as a broad-spectrum preservative.
Where is Calcium sorbate used?
- Food: preserves baked goods, dairy products and processed foods
- Cosmetics: mild antimicrobial agent in creams and lotions
- Pharmaceuticals: protects topical preparations, oral suspensions and semi-solid dosage forms
- It inhibits mold, yeast and bacteria, extending shelf life in moisture-sensitive and pH-neutral formulations.
Good to know: Less hygroscopic than potassium sorbate, making it practical for dry-blend and powder-based formulations. Food-grade material conforms to FCC and E203 specifications; pharmaceutical-grade material meets BP and Ph. Eur. standards.
Commercial specifications
- Food-grade: FCC and E203 specifications
- Pharmaceutical-grade: BP and Ph. Eur. standards
Other Names (Synonyms)
Calcium dihexa-2,4-dienoate|Sorbic Acid Calcium Salt|2,4-Hexadienoic acid, calcium salt|Calcium 2,4-hexadienoate, (E,E)-|2,4-Hexadienoic acid, calcium salt (2:1), (2E,4E)-|2,4-Hexadienoic acid, calcium salt, (E,E)-|2,4-Hexadienoic acid, calcium salt, (2E,4E)-|E203
What are the physical properties of Calcium sorbate?
Color White to Light yellow to Light orange
Form powder to crystal
Log P 1.347 (est)
Which trade and regulatory codes apply to Calcium sorbate?
HS Code 2916.19.5000
WGK (Germany) 3