Calcium pidolate

CAS Number
31377-05-6
EC Number
250-602-4

What is Calcium pidolate?

Calcium pidolate (CAS 31377-05-6) is a calcium salt of pyroglutamic acid used as a bioavailable calcium source in nutritional and pharmaceutical applications. Also marketed as Efical and Calcidone.

Where is Calcium pidolate used?

  • Pharmaceutical manufacturing: oral calcium supplements in tablets, sachets and effervescent formats
  • Functional food and nutraceutical: fortified beverages, dairy alternatives and clinical nutrition
  • Animal feed and veterinary nutrition: mineral supplement for calcium deficiencies in livestock and companion animals
  • Sports nutrition: electrolyte and recovery products for bone and muscle support
  • It offers superior gastrointestinal tolerability compared to carbonate or citrate forms.

Good to know: High solubility and tolerance profile make it a preferred alternative to conventional calcium salts in targeted supplementation formats.

Commercial specifications

  • Typically conforms to USP or in-house monograph standards
  • Packaging from small R&D quantities to bulk commercial quantities

Other Names (Synonyms)

Efical|7Y2LVU5EKK|CALCIDONE|CALCIUM PCA|RefChem:122896|L-Proline, 5-oxo-, calcium salt (2:1)|Proline, 5-oxo-, calcium salt (2:1), L-

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What are the physical properties of Calcium pidolate?

Density 0.001g/cm3 at 20℃
Form Solid
Log P -0.72
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