Import D4 (Octamethylcyclotetrasiloxane)Cas: 556-67-2 — Buy in wholesale FOB from Supplier in China
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D4 (Octamethylcyclotetrasiloxane)CAS: 556-67-2
D4 (Octamethylcyclotetrasiloxane), CAS 556-67-2, is a cyclic siloxane with the molecular formula C8H24Si4O4 and a molecular weight of 296.63 g/mol. It appears as a colorless, transparent oily liquid with a boiling point of 175°C and a flash point of 56°C. The specification requires a minimum purity of 99.0%, with viscosity at 25°C of 2.30 mm²/s and a refractive index between 1.3960 and 1.3970. It is insoluble in water and classified under HS code 2931900001.
D4 is primarily used as a building block in the production of silicone polymers, including silicone oils, rubbers, and resins. It undergoes ring-opening polymerization to form polydimethylsiloxane chains, making it essential in cosmetics, medical devices, and high-temperature lubricants. The material is flammable and requires storage away from ignition sources. Typical impurities include D3 and D5 siloxanes, which must be controlled to ensure consistent polymerization behavior.
The product is packed in 190 kg plastic-coated metal drums or 950 kg IBC totes. It is classified as UN 1993, Hazard Class 3, Packing Group III for transport. Buyers should confirm the moisture content, as water can interfere with polymerization. Lead time is typically 2 to 3 weeks after order confirmation. Payment is accepted via T/T or L/C, and the supplier provides a Certificate of Analysis with each shipment.
| Chemical Name | Octamethylcyclotetrasiloxane |
| CAS Number | 556-67-2 |
| Molecular Formula | C8H24Si4O4 |
| Molecular Weight | 296.63 g/mol |
| Purity | 99.0% minimum |
| Viscosity (25°C) | 2.30 mm²/s |
| Refractive Index (nD25) | 1.3960 - 1.3970 |
| Boiling Point | 175°C |
| Flash Point | 56°C |
| Density (20°C) | 0.956 g/cm³ |
| Water Solubility | Insoluble |
| Typical Impurity Profile | D3 <0.5%, D5 <0.8% standard |
| Packing Type | UN 1993, Packing Group III |
| Packing Format | 190 kg coated metal drum or 950 kg IBC |
| HS Code | 2931900001 |
Hangzhou Bayee Chemical Co., Ltd. is a chemical manufacturer located at No.3778 Jiangnan Great Road, Hangzhou, Zhejiang, China. The company is registered as an importer and producer of silicone intermediates, with D4 being one of its core products. Its trust tier is harbor, indicating verified business registration and facility inspection. Response metrics are inactive, suggesting limited customer service availability.
The supplier does not disclose company size, years in operation, or client list. No certifications such as ISO 9001 or REACH are mentioned in the listing. Production is believed to occur in-house, but no details on purification processes or analytical equipment are provided. Buyers should request batch-specific Certificates of Analysis and verify the supplier's ability to consistently meet purity and viscosity tolerances.
| Business Type | Supplier |
| Year Established | Recently Joined |
| Employees | Contact Supplier |
| Annual Revenue | Contact Supplier |
| Main Products | View Products Tab |
| Major Markets | Global |
| Response Time | <4h |
| Response Rate | New Supplier |
Sourcing D4 (Octamethylcyclotetrasiloxane) from Hangzhou Bayee Chemical Co., Ltd. - China Import Guide
Before ordering, confirm the batch-specific Certificate of Analysis includes purity, viscosity, refractive index, moisture, and impurity profile (D3/D5). Request a sample for lab testing if the material will be used in critical formulations. Do not rely on generic product descriptions; demand data for the exact batch you will receive. Verify the supplier's ability to provide consistent quality across shipments.
Logistics are handled via sea freight in UN-approved drums or IBCs. Lead time is typically 2 to 3 weeks. Incoterms are usually FOB Hangzhou or CIF destination port. Payment is via T/T or L/C. Buyers must ensure the supplier provides a Dangerous Goods Declaration, SDS, and export license for Class 3 flammable liquids. Confirm the container is clean and dry before loading.
Upon arrival, inspect drums for leaks or corrosion. Sample each drum and test for viscosity, refractive index, and moisture. Retain samples for 6 months in case of quality disputes. Ensure the Certificate of Analysis matches the batch number on the packaging. Keep all documentation for customs and regulatory compliance. If used in regulated industries, perform additional testing for heavy metals and residual solvents.
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30 suppliersBuy D4 (Octamethylcyclotetras in Bulk — Verified Supplier in China
When sourcing D4 (Octamethylcyclotetrasiloxane)Cas: 556-67-2 for your business, securing the right balance of quality and cost is essential. Hangzhou Bayee Chemical Co., Ltd., a verified supplier based in China, offers this product for international export. By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $19001950/Bags and manage bulk orders with a minimum order quantity (MOQ) of 1 Bags. This product is a staple in the Chemicals & Allied Products sector with strong demand from importing countries worldwide.
D4 (Octamethylcyclotetras Specifications, Trade Terms & Pricing
Importing D4 (Octamethylcyclotetras requires careful attention to shipping logistics, customs compliance, and secure payment terms. Hangzhou Bayee Chemical Co., Ltd. offers flexible shipping options such as Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. Common payment methods for international B2B transactions include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P). All transactions and RFQs are facilitated through EximNext, a leading online B2B marketplace designed to make cross-border trade secure and efficient.
About Hangzhou Bayee Chemical Co., Ltd. — Supplier in China
Finding trustworthy partners is the foundation of successful importing. The supplier of this D4 (Octamethylcyclotetras has been verified on our platform. Whether you are a distributor, wholesaler, or procurement manager, you can request a free quotation, ask for product samples, and finalize your bulk purchase with confidence. EximNext hosts thousands of verified manufacturers and exporters across 200+ countries. Explore similar products in the Chemicals & Allied Products category and connect with top-tier exporters on our comprehensive B2B marketplace. Start your sourcing journey today.
Import D4 (Octamethylcyclotetras — Shipping, Logistics & Customs
Importing D4 (Octamethylcyclotetras requires careful attention to shipping logistics, customs compliance, and secure payment terms. Common shipping options include Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. Buyers should verify import duties in their destination country. Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P).
Frequently Asked Questions About D4 (Octamethylcyclotetras
What is the wholesale price of D4 (Octamethylcyclotetrasiloxane)Cas: 556-67-2?
The current listed wholesale price for D4 (Octamethylcyclotetrasiloxane)Cas: 556-67-2 from Hangzhou Bayee Chemical Co., Ltd. is $19001950/Bags on FOB terms from China. Prices may vary depending on order volume, packaging, and destination. For the most accurate bulk quote, send a direct RFQ to Hangzhou Bayee Chemical Co., Ltd. through EximNext.
What is the Minimum Order Quantity (MOQ) for D4 (Octamethylcyclotetras?
The supplier, Hangzhou Bayee Chemical Co., Ltd., has set a Minimum Order Quantity (MOQ) of 1 Bags for D4 (Octamethylcyclotetras. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
What is the HS Code for D4 (Octamethylcyclotetrasiloxane)Cas: 556-67-2?
The HS Code classification for D4 (Octamethylcyclotetrasiloxane)Cas: 556-67-2 depends on the specific grade and form. Contact Hangzhou Bayee Chemical Co., Ltd. through EximNext for the exact HS Code and customs documentation required for your destination country.
How can I import D4 (Octamethylcyclotetras from China?
To import D4 (Octamethylcyclotetras from China, negotiate shipping terms (FOB, CIF, or EXW) directly with Hangzhou Bayee Chemical Co., Ltd.. Ensure you have the necessary import licenses for Chemicals & Allied Products products in your destination country.
Is Hangzhou Bayee Chemical Co., Ltd. a verified supplier?
Yes, Hangzhou Bayee Chemical Co., Ltd. is a verified supplier on EximNext. You can view their complete company profile, business registration details, certifications, and export history before placing a bulk order.
What are the key specifications of D4 (Octamethylcyclotetrasiloxane)Cas: 556-67-2?
For a complete technical data sheet or Certificate of Analysis (COA), send an inquiry directly to Hangzhou Bayee Chemical Co., Ltd. through EximNext.
What packaging options are available for bulk orders of D4 (Octamethylcyclotetras?
Hangzhou Bayee Chemical Co., Ltd. offers D4 (Octamethylcyclotetras with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Which countries import D4 (Octamethylcyclotetras the most?
D4 (Octamethylcyclotetras is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Hangzhou Bayee Chemical Co., Ltd. through our platform.
What certifications does this D4 (Octamethylcyclotetras supplier hold?
Hangzhou Bayee Chemical Co., Ltd. maintains international quality certifications. These ensure that the D4 (Octamethylcyclotetras meets international quality, safety, and regulatory standards required for cross-border trade.
How do I place a bulk order for D4 (Octamethylcyclotetrasiloxane)Cas: 556-67-2 on EximNext?
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Hangzhou Bayee Chemical Co., Ltd. will respond with a detailed wholesale quote including FOB pricing, lead time, and payment options.
What payment methods are accepted?
Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), Documents against Payment (D/P), and Escrow services. Confirm accepted terms directly with Hangzhou Bayee Chemical Co., Ltd..
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