Calcifediol, or 25-hydroxyvitamin D3 (CAS 19356-17-3, C27H44O2, molecular weight 400.64), is the hepatic metabolite of cholecalciferol, offered as a pre-hydroxylated vitamin D ingredient that is typically produced from lanolin-derived D3. Chemically it differs from cholecalciferol (C27H44O, 384.64) by a single hydroxyl group at the 25-position, making it a diol rather than a mono-ol and raising its molecular weight accordingly. Because it is already hydroxylated, it is standardized by mass in micrograms with no IU conversion applied, unlike the D2 and D3 forms in this family. It is supplied in capsule, softgel and liquid formats.
- Gélules
- Capsules molles
- Liquides
Applications
Single-nutrient vitamin D supplements and specialized multivitamin formulas.
Documentation & quality
Every order is backed by the documents your quality team files, and the controls behind them.
Certificate of Analysis
every batchSpecification sheet
on requestAllergen statement
on requestGMO statement
on requestTraceability
on requestSafety Data Sheet
where applicableHow it’s controlled
- Identity verified on every incoming raw material
- Screened for heavy metals and microbial contaminants
- Full batch and lot traceability
- Produced under our certified GMP system
Other forms of Vitamin D
Vitamin D3 (Cholecalciferol, lanolin)
Cholecalciferol; (3beta,5Z,7E)-9,10-secocholesta-5,7,10(19)-trien-3-ol
- CAS
- 67-97-0
- Formula
- C27H44O
- Sans gluten
- Sans OGM
Vitamin D3 (Cholecalciferol, vegan/lichen)
Cholecalciferol; (3beta,5Z,7E)-9,10-secocholesta-5,7,10(19)-trien-3-ol
- CAS
- 67-97-0
- Formula
- C27H44O
- Vegan
- Sans gluten
- Sans OGM
- Pescétarien
Vitamin D2 (Ergocalciferol)
Ergocalciferol; (3beta,5Z,7E,22E)-9,10-secoergosta-5,7,10(19),22-tetraen-3-ol
- CAS
- 50-14-6
- Formula
- C28H44O
- Vegan
- Sans gluten
- Sans OGM
- Pescétarien