
Pharmaceutical-grade Calcitriol (active vitamin D3, CAS 32222-06-3), min. 98%, supplied wholesale by Zyntex to licensed producers. Highly potent API for microgram-dose soft capsules, injections and ointments. CoA and SDS.
Calcitriol (1α,25-dihydroxycholecalciferol, C27H44O3) is a white crystalline powder that melts at about 111–115°C. It is extremely sensitive to light, air and heat, so producers ship it under inert gas and at low temperature.
In addition, pharmaceutical companies use it in soft gelatin capsules with doses of only 0.25 or 0.5 micrograms, in oral solutions, in injections and in topical ointments. Because doses are so small, producers usually prepare dilute solutions in oil before encapsulation, and content uniformity requires careful control. Similarly, other bone-related APIs in our range include Teriparatide and Zoledronic Acid.
It is extremely potent and toxic in milligram amounts, so it requires contained handling. Zyntex therefore supplies it only to licensed pharmaceutical companies with appropriate high-potency capabilities.
Typical uses include, for example:
💊 Soft Capsules
API for microgram-dose capsules.
💉 Injections
API for injectable formulations.
🧴 Ointments
API for topical products.
🔬 Generic Development
Development as well as reference material.
| Parameter | Standard Value |
|---|---|
| Product Name | Calcitriol (Active Vit D3) |
| CAS Number | 32222-06-3 |
| Molecular Formula / Weight | C27H44O3 / 416.64 g/mol |
| Assay (Purity) | Min. 98.0% |
| Melting Point | 111°C – 115°C |
| Documents | CoA as well as SDS with every lot |
⚠️ Safety & Handling: Fatal if swallowed, in contact with skin or if inhaled; causes damage to organs through prolonged exposure. Handle only in contained systems, and also wear full protective equipment and respiratory protection. Store locked under inert gas at low temperature, protected from light, because it degrades quickly. Always consult the Safety Data Sheet (SDS), because it contains the full classification and handling instructions.
Why does calcitriol require contained handling?
Because it is active in microgram doses and toxic in milligram amounts, even small dust exposures must be avoided.
How should buyers store and handle calcitriol?
Under inert gas, frozen or refrigerated and protected from light, because light, air and heat degrade it.
How can I get a price and documents?
Prices depend on quantity, packaging and destination, so please contact us with your required volume. We then send a quotation together with the CoA and SDS.