7-Dehydrocholesterol(CAS 434-16-2)
| Purity | Grade | Package | Stock | Price | Quantity |
| 95% | RG | 1G | In Stock | 2 USD
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| 95% | RG | 100G | In Stock | 83 USD
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| 97% | RG | 1G | In Stock | 4 USD
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| 97% | RG | 5G | In Stock | 12 USD
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| 97% | RG | 25G | In Stock | 52 USD
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| 97% | RG | 100G | In Stock | 189 USD
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| 97% | RG | 500G | In Stock | 907 USD
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Your region is eligible for ordering. Available NMR Spectrum
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Applications of 434-16-2
| Industry | Application | Process |
|---|---|---|
| Pharmaceuticals | Precursor to vitamin D3, used in cholecalciferol (vitamin D3) synthesis | Photochemical conversion: UVB irradiation (wavelength ~290–315 nm) induces ring-opening to form vitamin D3 |
| Food & Nutrition Fortification | Raw material for vitamin D3 production in food and dietary supplements | Extracted from lanolin or yeast fermentation products, then purified for use in nutritional fortificant manufacturing |
| Cosmetics | Incorporated into skincare formulations; converted to vitamin D3 upon skin exposure to light, supporting skin health | Formulated into products to enable localized photoconversion on the skin surface |
| Life Science Research | Used in studies of cholesterol metabolism, vitamin D biosynthesis, and photochemical reaction mechanisms | Synthesized in the laboratory or isolated from natural sources for cell culture, enzymology, and photochemical experiments |
Physical and chemical properties of 434-16-2
Acidity coefficient |
14.91±0.70(Predicted) |
|---|---|
Boiling Point |
493.7±34.0 °C at 760 mmHg |
BRN |
2224615 |
Density |
1.0±0.1 g/cm3 |
Exact Mass |
384.339203 |
Flash Point |
212.3±17.9 °C |
H Bond Acceptors |
1 |
H Bond Donors |
1 |
Index of Refraction |
1.536 |
LogP |
9.46 |
Melting Point |
150.5 °C |
Merck |
13,2887 |
Molecular Formula |
C27H44O |
Molecular Weight |
384.638 |
optical activity |
[α]20/D -115±8°, c = 1% in chloroform |
PSA |
20.23000 |
Solubility |
1 mg/mL |
Specific rotation |
-116 º (C=1, CHCL3) |
Stability |
Light Sensitive |
Storage condition |
-20℃ |
Vapour Pressure |
0.0±2.8 mmHg at 25°C |
Water Solubility |
Insoluble |
Spectrums of 434-16-2
1.The NMR spectrum displayed on the page is a pre-sale reference spectrum and may differ from that of the actual received batch.
2.The accompanying documentation will include the NMR spectrum and purity analysis data for the shipped batch.
Retrosynthesis analysis of 434-16-2
Cas:5226-01-7
Cas:1059-86-5
Cas:16826-35-0
Cas:555-31-7
Cas:67-63-0
Q&A for CAS 434-16-2
1. How can I verify product quality?
Every batch of our Chemical Reagents is tested to meet ISO 9001 standards. We provide COA & NMR & SDS Provided with each shipment. Batch COA available for verification, and third-party retesting is supported. A full refund is offered if our data is incorrect.
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Orders from Ready stock / In stock items typically Ships Tomorrow via Fast Shipping via FedEx/DHL/UPS. International deliveries usually arrive within 7 business days, subject to customs clearance.
3. What if the received product doesn’t meet quality standards?
If your Lab Grade Chemical Reagents do not match the Batch COA available, we will issue a replacement or a full refund upon verification.
4. Are hazardous labels included? How is safe shipping ensured?
Hazardous products are labeled and packaged following international regulations. We provide SDS Provided with all hazardous shipments to ensure safe and compliant transport.
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Yes. Our Lab Supplier team is available to assist with questions about product usage, storage, Lab Grade requirements, applications, and more.
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Yes. For bulk orders of Chemical Reagents, we offer competitive pricing. Submit a quotation request and we’ll provide a tailored offer.
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Yes, samples are available for selected Lab Grade products. Please submit a request to confirm availability and specifications.
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Yes. Items labeled In stock / Ready stock on our website are available for immediate shipment, usually within 1–2 business days. Large packs or custom specifications require lead time confirmation.
9. Can you customize purity or packaging?
Yes. We support customization of Lab Grade purity, packaging size, and special testing requirements. Share your needs and we’ll provide a tailored solution.
10. Is the COA consistent with the shipped batch?
Yes. Batch COA available matches the actual shipment. COAs shown online are for reference or from previous batches.
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Yes. We offer Lab Supplier services for stable batch consistency, pricing agreements, and safety stock for long-term customers to ensure uninterrupted supply.
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Download SDS of 434-16-2
Pictograms |
No hazard pictograms applicable |
|---|---|
Signal Word |
No hazard Signal Word applicable |
Hazard Statements |
H413 May cause long lasting harmful effects to aquatic life |
Safety Data Sheet |
Download COA of 434-16-2
Operate under the ISO 9001 system
