Import Optical Brightener Ob-1t — Buy in wholesale FOB from Supplier in China
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Optical Brightener OB-1T
Optical Brightener OB-1T is a fluorescent whitening agent whose molecular structure is 4,4'-Bis(2-benzoxazolyl)stilbene (C28H18N2O2). Changsha Lianda Chemical Co., Ltd. offers the material as a bright‑yellow crystalline powder designed for easy integration into polymer and fibre formulations. The product is highlighted for its thermal stability and light‑fastness, properties that are valuable in high‑temperature processing environments.
Within the optical brightener market the OB‑1T grade is classified as a premium‑grade additive. Typical specifications include a particle size below 100 µm, colour intensity that remains stable after prolonged exposure to UV light, and a thermal degradation point near 250 °C. These characteristics align with industry expectations for additives used in polyester fibre extrusion, plastic compounding and coating applications.
End users such as textile manufacturers, detergent formulators and paper producers incorporate OB‑1T to achieve higher brightness and visual appeal. Changsha Lianda notes that the product is shipped in industrial‑grade containers and that trade terms are negotiable; buyers should confirm the minimum order quantity, lead‑time and chosen Incoterm directly with the supplier. The brightener’s performance at low addition levels helps reduce overall material usage while meeting regulatory standards for safety and environmental impact.
| Chemical Name | 4,4'-Bis(2-benzoxazolyl)stilbene |
| Chemical Formula | C28H18N2O2 |
| Appearance | bright yellow crystalline powder (typical) |
| Colour | bright yellow (typical) |
| Particle Size | <100 µm (typical) |
| Thermal Stability | stable up to 250 °C (typical) |
| Light Fastness | maintains fluorescence after prolonged UV exposure (typical) |
| Recommended Dosage | 0.1‑0.5 % by weight (typical) |
| Packaging | industrial‑grade containers, e.g., 25 kg drums (typical) |
| Typical Certifications | ISO, SGS (typical) |
Changsha Lianda Chemical Co., Ltd. is located at No.10 Luositang Road, South Mawangdui Road, Changsha 410001, Hunan Province, China. The company carries a harbour‑level trust tier and, like many imported‑tier suppliers, currently shows a response rate of 0 % with no recorded response hours, suggesting that initial contact may require persistence.
The listing emphasizes that the company supplies optical brightener OB‑1T in bulk, with flexible MOQ and standard industrial packaging. No explicit details on production capacity, lead‑time or specific quality certificates are provided, so importers should request a formal quotation and any relevant test reports before proceeding.
Optical Brightener OB-1T is a high-performance fluorescent whitening agent widely used in polyester fibers, plastics, and coating applications to achieve brilliant whiteness and enhanced visual appeal. This premium-grade bright yellow crystalline powder offers excellent thermal stability and light fastness, making it ideal for industrial polymer and textile processing. OB-1T is a staple additive in the global chemicals trade, sourced primarily from manufacturers in China and India, and is exported in bulk packaging to meet the demands of converters and compounders worldwide.
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Sourcing Optical Brightener OB-1T from Changsha Lianda Chemical Co., Ltd. - China Import Guide
Before committing to a purchase, verify the product’s purity, request a recent certificate of analysis, and ensure the supplier can supply the batch size you require. Because the supplier’s response statistics are currently zero, establish a clear communication channel and obtain written confirmation of specifications and any applicable certifications.
Discuss logistics early: clarify whether the transaction will be FOB, CIF or another Incoterm, and ask for an estimated production and shipping lead‑time. Payment options such as L/C or T/T are typical for bulk chemical trades, but the exact terms should be agreed in the contract.
Plan for quality assurance by arranging pre‑shipment inspection focused on particle size distribution and colour consistency. Obtain a full set of test reports, including UV‑vis fluorescence, thermal stability and safety data sheets, to satisfy both import regulations and your internal quality standards.
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30 suppliersBuy Optical Brightener Ob-1t in Bulk — Verified Supplier in China
When sourcing Optical Brightener Ob-1t for your business, securing the right balance of quality and cost is essential. Changsha Lianda Chemical Co., Ltd., a verified supplier based in China, offers this product with key specifications including Technical/Industrial Grade OB-1T, 4,4'-Bis(2-benzoxazolyl)stilbene, and ≥98.5% active ingredient. By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $18,00022,000./Unit and manage bulk orders with a minimum order quantity (MOQ) of 1 Unit. This product is actively traded under HS Code 3204.20, making it a staple in the Chemicals & Allied Products sector with strong demand from importing countries worldwide.
Optical Brightener Ob-1t Specifications, Trade Terms & Pricing
Importing Optical Brightener Ob-1t requires careful attention to shipping logistics, customs compliance, and secure payment terms. Changsha Lianda Chemical Co., Ltd. offers flexible shipping options such as Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. To ensure a smooth transaction, buyers should verify import duties for HS Code 3204.20 in their destination country. 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 B2B marketplace designed to make cross-border trade secure and efficient.
About Changsha Lianda Chemical Co., Ltd. — Supplier in China
Finding trustworthy partners is the foundation of successful importing. The supplier of this Optical Brightener Ob-1t 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 global B2B marketplace. Start your sourcing journey today.
Import Optical Brightener Ob-1t — Shipping, Logistics & Customs
Importing Optical Brightener Ob-1t 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 for HS Code 3204.20 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 Optical Brightener Ob-1t
What is the wholesale price of Optical Brightener Ob-1t?
The current listed wholesale price for Optical Brightener Ob-1t from Changsha Lianda Chemical Co., Ltd. is $18,00022,000./Unit 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 Changsha Lianda Chemical Co., Ltd. through EximNext.
What is the Minimum Order Quantity (MOQ) for Optical Brightener Ob-1t?
The supplier, Changsha Lianda Chemical Co., Ltd., has set a Minimum Order Quantity (MOQ) of 1 Unit for Optical Brightener Ob-1t. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
What is the HS Code for Optical Brightener Ob-1t?
For international shipping and customs clearance, Optical Brightener Ob-1t is classified under HS Code 3204.20. Buyers should verify their local customs regulations to determine applicable import duties and taxes for this classification.
How can I import Optical Brightener Ob-1t from China?
To import Optical Brightener Ob-1t from China, negotiate shipping terms (FOB, CIF, or EXW) directly with Changsha Lianda Chemical Co., Ltd.. Ensure you have the necessary import licenses for Chemicals & Allied Products products in your destination country.
Is Changsha Lianda Chemical Co., Ltd. a verified supplier?
Yes, Changsha Lianda 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 Optical Brightener Ob-1t?
The key specifications for Optical Brightener Ob-1t supplied by Changsha Lianda Chemical Co., Ltd. include Technical/Industrial Grade OB-1T, 4,4'-Bis(2-benzoxazolyl)stilbene, and ≥98.5% active ingredient. For a complete technical data sheet or Certificate of Analysis (COA), send an inquiry directly to the supplier through EximNext.
What packaging options are available for bulk orders of Optical Brightener Ob-1t?
Changsha Lianda Chemical Co., Ltd. offers Optical Brightener Ob-1t with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Which countries import Optical Brightener Ob-1t the most?
Optical Brightener Ob-1t is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Changsha Lianda Chemical Co., Ltd. through our platform.
What certifications does this Optical Brightener Ob-1t supplier hold?
Changsha Lianda Chemical Co., Ltd. maintains international quality certifications. These ensure that the Optical Brightener Ob-1t meets international quality, safety, and regulatory standards required for cross-border trade.
How do I place a bulk order for Optical Brightener Ob-1t on EximNext?
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Changsha Lianda 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 Changsha Lianda Chemical Co., Ltd..
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