China Supply Wholesale Price 7-Dehydrocholesterol Powder CAS NO.434-16-2 Specialty Chemical Raw Material
TDS
434-16-2
Food Grade
99%
qingdao
N/A
1kg/bag
Yes
2026-10-26
Chemicals,Glabridin,Phenylethyl Resorcinol,Ascorbyl Tetraisopalmitate,Alpha-Arbutin,Kojic Dipalmitate
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Product Details
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Seller Information
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Description
![Shop China Supply Wholesale Price 7-Dehydrocholesterol Powder CAS NO.434-16-2 Specialty Chemical Raw Material-Detailed Image 1]()
![Shop China Supply Wholesale Price 7-Dehydrocholesterol Powder CAS NO.434-16-2 Specialty Chemical Raw Material-Detailed Image 2]()
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Product Name 7-Dehydrocholesterol CAS No. 434-16-2 Appearance White to Off-White Powder or Crystals MF C₂₇H₄₄O MW 384.64 Density 0.9717 (rough estimate) ![Shop China Supply Wholesale Price 7-Dehydrocholesterol Powder CAS NO.434-16-2 Specialty Chemical Raw Material-Detailed Image 5]()
![Shop China Supply Wholesale Price 7-Dehydrocholesterol Powder CAS NO.434-16-2 Specialty Chemical Raw Material-Detailed Image 6]()
![Shop China Supply Wholesale Price 7-Dehydrocholesterol Powder CAS NO.434-16-2 Specialty Chemical Raw Material-Detailed Image 7]()
Product Description
7-Dehydrocholesterol, also known as 7-DHC or Provitamin D3, is a sterol compound with the molecular formula C27H44O. It is an important precursor in Vitamin D3 biosynthesis and is of interest to manufacturers and research organizations involved in vitamin-related ingredient development and specialized chemical applications.
Due to its specific molecular structure and photochemical properties, 7-Dehydrocholesterol is primarily associated with Vitamin D3 precursor production and related technical research. Its suitability for a particular commercial application depends on the supplied grade, manufacturing process, and applicable regulatory requirements.
Key Functions
Vitamin D3 Precursor: Serves as a precursor in the production of Vitamin D3 through an appropriate photochemical process.
Specialty Sterol Ingredient: Provides a defined sterol compound for specialized ingredient sourcing and development.
Vitamin-Related Research: Can be evaluated for research and manufacturing processes involving Vitamin D3 production.
Ingredient Development Support: Offers a raw material option for qualified technical applications requiring 7-Dehydrocholesterol.
Mechanism of Action
7-Dehydrocholesterol contains a conjugated diene structure that enables photochemical conversion when exposed to appropriate ultraviolet radiation. Under suitable irradiation conditions, it is converted into previtamin D3, which subsequently undergoes thermal isomerization to form Vitamin D3, also known as cholecalciferol.
The efficiency of this conversion depends on factors such as irradiation wavelength, exposure conditions, temperature, and material quality. Controlled processing and appropriate analytical testing are important when the compound is used as a precursor in Vitamin D3 production.
Advantages and Benefits
Clearly identified sterol compound with a defined chemical structure.
Established role as a precursor in Vitamin D3 biosynthesis.
Relevant to specialized Vitamin D3 production and technical research.
Provides an ingredient sourcing option for qualified manufacturers and research organizations.
Allows buyers to evaluate suitability based on product grade, purity, and intended processing requirements.
Supply and Customer Support
Shandong Keyang Materials Technology Co., Ltd. supplies specialty ingredients and raw materials for international B2B customers.
Available technical documentation can be provided according to the actual product grade and customer requirements. Please contact us for the Certificate of Analysis (COA), Technical Data Sheet (TDS), Safety Data Sheet (SDS), packaging information, and quotation, where available.
Product purity, appearance, storage conditions, stability, and suitability for the intended application should be confirmed through the relevant technical documentation before ordering.Company ProfileShandong Keyang Materials Technology Co., Ltd. is a supplier of fine chemicals and cosmetic ingredients, specializing in vitamin derivatives and cosmetic active ingredients. Our product portfolio includes Ascorbyl Tetraisopalmitate (VC-IP) and other ingredients for personal care and skincare formulations.
We are committed to providing suitable ingredient solutions for cosmetic manufacturers, skincare brands, OEM/ODM companies, and ingredient distributors worldwide. We focus on product quality, reliable supply, competitive pricing, and responsive customer service to support our customers' sourcing needs.
We welcome inquiries from global partners seeking cosmetic raw materials and fine chemical ingredients. Product specifications, technical data sheets (TDS), safety data sheets (SDS), certificates of analysis (COA), and quotations can be provided upon request, subject to product availability.Certifications![Shop China Supply Wholesale Price 7-Dehydrocholesterol Powder CAS NO.434-16-2 Specialty Chemical Raw Material-Detailed Image 8]()
Packing & Delivery![Shop China Supply Wholesale Price 7-Dehydrocholesterol Powder CAS NO.434-16-2 Specialty Chemical Raw Material-Detailed Image 9]()
![Shop China Supply Wholesale Price 7-Dehydrocholesterol Powder CAS NO.434-16-2 Specialty Chemical Raw Material-Detailed Image 10]()
FAQ1.Are you a factory or trading companyWe are a company integrating manufacturer and trading company
2.How is the quality I want to test.Before production and extraction, we will test all raw materials.Quality is our top priority. All products are strictly tested and confirmed by our QC and QA, approved by Third Party Lab in China.So you will be assured with Good Quality if you choose us. We welcome you test the product and hope to get your feedback.
3.Can I get a Free sampleYes, For most products we can provide you a free sample. Plesae be free to consult our salesman.For a larger quantity, we always support you with better price.
4. What's your main payment methodT/T (Bank transfer), WU, MoneyGram, Wechat,Alipay,Credit card payment.
5.What modes of transportation do you have to chooseWe cooperate with HKEMS, DHL, TNT, UPS, FEDEX, EMS, China Air Post ,sea transportation etc.And with the SAFE SHIPPING in each country, you can receive the goods smoothly.It is fast and safe method.
6.How is the goods packedWe usually send goods with disguise package outside and a double-layer sterile transparent bag inside.We have tried thousand of package methods, it looks serious and discreet.
7.How to proceed orderAfter you confirm all details of order, pay money in advance and give us Shipping address.We arrange the shipment at first time after receive payment and offer after-sales service after you receive parcel.
8.When will I receive the shipping number Where I can check status of my orderAfter the goods are sent out, our staff will send you the shipping number via email, online or WhatsApp ASAP.You can also check the status online on 17track.
ECHEMI Editorial Reference7-Dehydrocholesterol is biosynthetic precursor of cholesterol and vitamin D3.
Solid
Cholesta-5,7-dien-3beta-ol is a 3beta-sterol, a cholestanoid and a Delta(5),Delta(7)-sterol. It has a role as a human metabolite and a mouse metabolite.Certificates-
![China Supply Wholesale Price 7-Dehydrocholesterol Powder CAS NO.434-16-2 Specialty Chemical Raw Material Certificates 1]( "TDS")
TDS
Basic Info-
Product Name:
7-Dehydrocholesterol
Other Name:Cholesta-5,7-dien-3-ol,(3β)-;Cholesta-5,7-dien-3β-ol;(3β)-Cholesta-5,7-dien-3-ol;Cholesterol,7-dehydro-;7-Dehydrocholesterol;Provitamin D3;Dehydrocholesterol;7-Dehydrocholesterin;7,8-Didehydrocholesterol;Δ7-Cholesterol;Δ5,7-Cholestadien-3β-ol;NSC 18159;2377332-87-9
CAS No.:434-16-2
Molecular Formula:C27H44O
InChIKeys:InChIKey=UCTLRSWJYQTBFZ-DDPQNLDTSA-N
Molecular Weight:384.648
Exact Mass:384.64
EC Number:207-100-5
UNII:BK1IU07GKF
HScode:29061990
Categories:
Characteristics-
PSA:
20.2
XLogP3:9.46
Appearance:Solid
Density:1.0±0.1 g/cm3
Melting Point:150.5 °C
Boiling Point:493.7±34.0 °C at 760 mmHg
Flash Point:212.3±17.9 °C
Refractive Index:1.536
Water Solubility:Insoluble
Storage Conditions:-20ºC
Vapor Pressure:8.08E-12mmHg at 25°C
Hazard IdentificationClassification of the substance or mixture
Hazardous to the aquatic environment, long-term (Chronic) - Category Chronic 4
GHS label elements, including precautionary statements
Pictogram(s) No symbol. Signal word No signal word
Hazard statement(s) H413 May cause long lasting harmful effects to aquatic life
Precautionary statement(s) Prevention P273 Avoid release to the environment.
Response none
Storage none
Disposal P501 Dispose of contents/container to an appropriate treatment and disposal facility in accordance with applicable laws and regulations, and product characteristics at time of disposal.
Other hazards which do not result in classification
no data available
Handling and StoragePrecautions for safe handling
Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.
Conditions for safe storage, including any incompatibilities
Store the container tightly closed in a dry, cool and well-ventilated place. Store apart from foodstuff containers or incompatible materials.
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Seller Information
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Business Type:
Trader
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Main Products:
Chemicals,Glabridin,Phenylethyl Resorcinol,Ascorbyl Tetraisopalmitate,Alpha-Arbutin,Kojic Dipalmitate
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Location:
Room 805, No. 178 Yingchun Street, Laishan District, Yantai City, Shandong Province
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Payment Terms:
TT against copy of documents,D/P,L/C,D/A,O/A,TT against B/L draft before shipment,100% TT in advance
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Average lead Time:
20 days
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Total Annual Revenue:
$10 million-$25 million
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Total Employees:
5-10
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Year of Establishment:
2026
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Country Product Purchase Quantity Date Posted Post an enquiry for this product
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