Import Optical Brightener Ob-1 — Buy in wholesale FOB from Supplier in China
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Optical Brightener Ob-1
Optical Brightener Ob-1 is a stilbene‑derivative fluorescent whitening agent whose chemical name is 4,4'-Bis(2-benzoxazolyl)stilbene and whose formula is C28H18N2O2. Credit Chemicals supplies this additive as a fine powder that can be dispersed in organic solvents for incorporation into polymer melts. The product is marketed for its ability to retain whitening efficiency under high‑temperature processing typical of engineering plastics and PET resin extrusion.
In the broader market the compound belongs to the class of optical brighteners that are usually supplied as bright‑yellow crystalline powders with particle sizes below 100 µm. Typical grades exhibit excellent thermal stability, often remaining effective up to 250 °C, and provide strong fluorescence under UV illumination. Users report that the agent delivers pronounced whiteness on polyester‑cotton blends and synthetic fibers even at low addition levels, a behaviour that aligns with industry expectations for high‑performance brighteners.
The agent is purchased by manufacturers of polyester fibres, engineering plastics and PET packaging who need to improve product whiteness without compromising melt flow. Credit Chemicals indicates that orders can be placed in bulk containers and that payment and shipping terms are negotiated per transaction; buyers should confirm minimum order quantities, lead‑time and Incoterms directly with the supplier. The product is shipped in industrial‑grade drums and is suitable for integration into compounding lines that operate at elevated temperatures.
| Chemical Name | 4,4'-Bis(2-benzoxazolyl)stilbene |
| Chemical Formula | C28H18N2O2 |
| Appearance | fine powder (typical) |
| Colour | bright yellow (typical) |
| Solubility | soluble in ethanol, acetone and similar organic solvents (typical) |
| Thermal Stability | stable up to 250 °C (typical for high‑performance brighteners) |
| Recommended Dosage | 0.1‑0.5 % by weight (typical) |
| Application Industries | plastics, polyester fibres, PET products |
| Packaging | bulk industrial drums, e.g., 25 kg (typical) |
| Typical Certifications | ISO, SGS (typical) |
Credit Chemicals is based in Jinan, Shandong Province, China (postal code 250031). The company is listed with a harbour‑level trust tier on the marketplace and currently shows a response rate of 0 % with no recorded response hours, indicating that communication may require proactive follow‑up. Its profile lists no additional corporate history or production capacity, so buyers should request detailed capability statements when evaluating suitability.
The supplier’s current listing focuses on the optical brightener product line and does not disclose specific MOQ, lead‑time or certification documents. Prospective importers are advised to obtain a formal quotation and request copies of any quality certificates before committing to purchase.
Optical Brightener OB-1 is a high-performance fluorescent whitening agent widely used in the plastics, textile, and fiber industries. It performs exceptionally under high-temperature processing conditions, making it ideal for shaping engineering plastics and PET products. OB-1 delivers superior whitening effects on polyester-cotton blend fabrics and synthetic fibers, improving whiteness and brightness significantly at low addition levels. As a thermal-resistant optical brightener, it is an essential additive in the global polymer and textile supply chain for manufacturers and traders seeking high-quality whitening solutions.
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| Business Type | Supplier |
| Year Established | Recently Joined |
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| Annual Revenue | Contact Supplier |
| Main Products | View Products Tab |
| Major Markets | Global |
| Response Time | <4h |
| Response Rate | New Supplier |
Sourcing Optical Brightener Ob-1 from Credit Chemicals - China Import Guide
Before placing an order, verify the chemical purity, request a recent certificate of analysis and confirm that the supplier can supply the required batch size. Because the supplier’s response rate is currently recorded as zero, establish a clear line of communication and obtain written confirmation of product specifications.
Logistics for this product are usually arranged on an FOB or CIF basis, but the exact Incoterm must be agreed with Credit Chemicals. Lead‑time information is not disclosed in the listing, so ask for an estimated production and shipping schedule. Payment methods such as L/C or T/T are typical for bulk chemical trades and should be clarified in the contract.
Arrange for pre‑shipment inspection if possible, focusing on particle size distribution and colour consistency. Ensure that the supplier can provide a material safety data sheet and a full set of test reports, including UV‑vis fluorescence and thermal stability data, to satisfy import compliance and quality assurance requirements.
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30 suppliersBuy Optical Brightener Ob-1 in Bulk — Verified Supplier in China
When sourcing Optical Brightener Ob-1 for your business, securing the right balance of quality and cost is essential. Credit Chemicals, a verified supplier based in China, offers this product with key specifications including 4,4'-Bis(2-benzoxazolyl)stilbene (OB-1), 7128-64-5, and Yellowish green crystalline powder. By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $20/Bags and manage bulk orders with a minimum order quantity (MOQ) of 1 Bags. 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-1 Specifications, Trade Terms & Pricing
Importing Optical Brightener Ob-1 requires careful attention to shipping logistics, customs compliance, and secure payment terms. Credit Chemicals 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 import export marketplace designed to make cross-border trade secure and efficient.
About Credit Chemicals — Supplier in China
Finding trustworthy partners is the foundation of successful importing. The supplier of this Optical Brightener Ob-1 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 online B2B marketplace. Start your sourcing journey today.
Import Optical Brightener Ob-1 — Shipping, Logistics & Customs
Importing Optical Brightener Ob-1 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-1
What is the wholesale price of Optical Brightener Ob-1?
The current listed wholesale price for Optical Brightener Ob-1 from Credit Chemicals is $20/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 Credit Chemicals through EximNext.
What is the Minimum Order Quantity (MOQ) for Optical Brightener Ob-1?
The supplier, Credit Chemicals, has set a Minimum Order Quantity (MOQ) of 1 Bags for Optical Brightener Ob-1. 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-1?
For international shipping and customs clearance, Optical Brightener Ob-1 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-1 from China?
To import Optical Brightener Ob-1 from China, negotiate shipping terms (FOB, CIF, or EXW) directly with Credit Chemicals. Ensure you have the necessary import licenses for Chemicals & Allied Products products in your destination country.
Is Credit Chemicals a verified supplier?
Yes, Credit Chemicals 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-1?
The key specifications for Optical Brightener Ob-1 supplied by Credit Chemicals include 4,4'-Bis(2-benzoxazolyl)stilbene (OB-1), 7128-64-5, and Yellowish green crystalline powder. 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-1?
Credit Chemicals offers Optical Brightener Ob-1 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-1 the most?
Optical Brightener Ob-1 is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Credit Chemicals through our platform.
What certifications does this Optical Brightener Ob-1 supplier hold?
Credit Chemicals maintains international quality certifications. These ensure that the Optical Brightener Ob-1 meets international quality, safety, and regulatory standards required for cross-border trade.
How do I place a bulk order for Optical Brightener Ob-1 on EximNext?
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Credit Chemicals 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 Credit Chemicals.
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