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Direct Brown 2, with CAS number 2429-82-5 and EINECS 219-391-6, is a diazo-based direct dye formulated for cotton, wool, and paper applications. Its chemical structure, C29H19N5Na2O7S, enables strong affinity for cellulosic and protein fibers, delivering a consistent brown hue with moderate to good washfastness. The dye is manufactured using controlled diazotization and coupling reactions in compliance with standard industrial practices.
The product is supplied as a fine powder with typical purity above 85% and moisture content under 6%. It dissolves readily in warm water and exhibits good stability in neutral to slightly alkaline conditions. While the listing references ISO certification, no certificate number or scope is provided. No data on heavy metal content or dyeing performance metrics such as lightfastness or rubbing fastness is included.
This dye is primarily used in textile dyeing for cotton blends and in paper manufacturing for packaging and decorative substrates. Buyers in the low-cost textile and printing industries rely on it for economical coloring. Packaging is typically in 25kg or 50kg multi-wall paper bags. Trade terms such as FOB and T/T are mentioned in the listing but require direct confirmation with the supplier for exact conditions.
| C.I. Number | 11120 |
| CAS Number | 2429-82-5 |
| EINECS Number | 219-391-6 |
| Chemical Formula | C29H19N5Na2O7S |
| Form | Powder |
| Active Content | Typically above 85% |
| Moisture Content | Typically below 6% |
| Solubility | Soluble in hot water, forms reddish-brown solution |
| pH of 1% Solution | Typically between 7.0 and 8.5 |
| Recommended Application | Dyeing cotton, wool, and paper substrates |
Tianjin Shenyuan Chemical Co., Ltd is based in Tianjin, China, with a registered address in the Hexi District. The supplier is classified as imported and harbor-tier, indicating basic platform verification. No information is provided regarding company history, workforce size, production volume, or export experience.
The listing mentions ISO certification but does not specify the standard, certificate number, or validity period. No details on laboratory testing, quality control procedures, or client references are available. Buyers must treat this as a manufacturer with unverified compliance claims and should request independent documentation before placing orders.
| 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 |
Before ordering Direct Brown 2 from Tianjin Shenyuan Chemical Co., Ltd, verify the EINECS and CAS numbers match the batch and request a Certificate of Analysis that includes purity, moisture, and heavy metal limits. Do not accept claims of ISO certification without the certificate number and scope. Confirm the dye’s compliance with local chemical regulations in your importing country.
Lead time, Incoterms, and payment terms are referenced but not defined. Clarify whether the supplier offers FOB Tianjin, CIF destination, or EXW factory terms. Confirm minimum order quantity and whether samples are available. Payment methods such as T/T or LC should be negotiated in writing before shipment.
Upon receipt, inspect packaging for moisture damage and verify the batch label against the Certificate of Analysis. Conduct a solubility test and shade comparison against a reference sample under daylight. Retain a sample from each shipment for quality traceability. Request a GHS-compliant Safety Data Sheet and confirm it includes all hazard classifications.
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Securing a reliable supply chain for Direct Brown 2 is critical for maintaining your business operations. Tianjin Shenyuan Chemical Co., Ltd, a verified supplier located in China, provides high-quality Direct Brown 2 ready for international export. By connecting directly with this supplier, buyers can bypass intermediaries, negotiate custom wholesale pricing, and arrange bulk shipments. This product is a key offering within the Products industry, catering to distributors, wholesalers, and importers worldwide.
Navigating the complexities of global sourcing is easier when you have direct access to the right manufacturers and exporters. When importing Direct Brown 2 from China, buyers can discuss shipping logistics, packaging requirements, and preferred payment terms directly with Tianjin Shenyuan Chemical Co., Ltd. This seamless communication is powered by EximNext, a premier B2B marketplace that connects ambitious buyers with verified global sellers across every major industry.
We understand that verifying supplier credentials is a top priority for importers. Tianjin Shenyuan Chemical Co., Ltd is part of our extensive network of vetted international exporters. Browse more products in the Related category or discover new suppliers across the Products sector. Expand your sourcing capabilities through our trusted global B2B marketplace — the import export marketplace built for serious international trade.
When importing Direct Brown 2 from China, buyers should consider shipping terms (FOB, CIF, EXW), customs documentation requirements, and payment security. Contact the supplier to discuss the best logistics options for your destination country.
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Yes, Tianjin Shenyuan Chemical Co., Ltd provides Direct Brown 2 for bulk export from China. You can negotiate the MOQ, packaging details, and shipping terms directly with the supplier.
Shipping terms such as FOB, CIF, or EXW can be negotiated directly with Tianjin Shenyuan Chemical Co., Ltd. Contact the supplier to discuss the best logistics options for importing Direct Brown 2 to your country.
Send a direct message to Tianjin Shenyuan Chemical Co., Ltd through our platform to request a product sample before committing to a large wholesale order.
Tianjin Shenyuan Chemical Co., Ltd is a registered and verified supplier on EximNext. We recommend using our secure messaging system and standard international payment methods (L/C, T/T, Escrow).
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