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Direct Black 19 is a synthetic azo dye with the CAS number 6428-31-5 and molecular formula C34H27N13Na2O7S2. It appears as a fine black powder and is classified as a direct dye, designed for applications requiring water solubility and strong affinity to cellulose-based substrates. The EINECS number 229-208-1 confirms its regulatory identification in European markets.
This dye is typically used in leather, paper, and textile dyeing where consistent black shade and good fastness to washing are required. The chemical structure allows for direct application without mordants, making it suitable for batch dyeing processes. Standard commercial grades contain less than 2% moisture and are free from soluble salts that could interfere with dye fixation. The powder form ensures uniform dispersion in aqueous baths.
Buyers in the leather finishing and paper manufacturing industries source this dye for deep, opaque coloring. It is commonly imported in 25kg polypropylene bags with inner polyethylene lining. Typical packaging supports bulk handling in industrial settings. Buyers should confirm compatibility with their dyeing equipment and verify the absence of heavy metals through a certificate of analysis before large-scale use.
| CAS Number | 6428-31-5 |
| EINECS Number | 229-208-1 |
| Molecular Formula | C34H27N13Na2O7S2 |
| Appearance | Fine black powder |
| Solubility | Readily soluble in water, forming a dark black solution |
| Moisture Content | Typical maximum 2% by weight |
| Purity | Typical minimum 95% active dye content |
| Particle Size | Typical 90% passes through 100-mesh sieve |
| pH of 1% Solution | Typical range 6.5 to 8.0 |
| Packaging | 25kg polypropylene bags with inner polyethylene lining |
Sparrowings International operates from Ahmedabad, Gujarat, and is registered as a supplier of direct dyes for industrial applications. The company’s address is verified through its physical location in an industrial zone, and its trust tier is listed as harbor, indicating basic verification of business registration and contact details. No claims about years in operation, production capacity, or client list are provided in the source data.
The supplier does not disclose certifications, workforce size, or export volume. Its profile reflects a trading entity focused on chemical dyes, with no indication of manufacturing facilities. Buyers should treat this as a sourcing agent unless independent verification confirms otherwise. Response metrics show no recorded activity, suggesting limited communication capacity.
| 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 placing an order, confirm the dye’s compliance with your target market’s regulations, particularly regarding heavy metals and azo breakdown products. Request a certificate of analysis showing results for lead, cadmium, mercury, and aromatic amines. Verify that the batch matches the CAS and EINECS numbers provided. Do not rely on supplier claims without third-party documentation.
Logistics are typically handled via sea freight in 20ft or 40ft containers. Lead time is not stated but may range from 15 to 30 days depending on port congestion. Incoterms are usually FOB Mumbai or Ahmedabad, but buyers must confirm exact terms. Payment is commonly via TT or LC; avoid advance payments without verified supplier history. Ensure packaging is labeled with UN 1866 for hazardous chemical transport.
Perform a small-scale dye test before bulk use to check shade consistency and fastness. Inspect each batch for uniform color, absence of clumps, and correct labeling. Request a batch-specific test report for solubility, moisture, and particle size. Retain a sample from each shipment for future comparison. Document all inspection results and communicate deviations immediately to the supplier.
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When sourcing Direct Black 19 for your business, securing the right balance of quality and cost is essential. Sparrowings International, a verified supplier based in India, offers this product for international export. By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $510/Bags and manage bulk orders with a minimum order quantity (MOQ) of 1 Bags. This product is a staple in the Products sector with strong demand from importing countries worldwide.
Importing Direct Black 19 requires careful attention to shipping logistics, customs compliance, and secure payment terms. Sparrowings International 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 global B2B marketplace designed to make cross-border trade secure and efficient.
Finding trustworthy partners is the foundation of successful importing. The supplier of this Direct Black 19 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 Products category and connect with top-tier exporters on our comprehensive import export marketplace. Start your sourcing journey today.
Importing Direct Black 19 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).
The current listed wholesale price for Direct Black 19 from Sparrowings International is $510/Bags on FOB terms from India. Prices may vary depending on order volume, packaging, and destination. For the most accurate bulk quote, send a direct RFQ to Sparrowings International through EximNext.
The supplier, Sparrowings International, has set a Minimum Order Quantity (MOQ) of 1 Bags for Direct Black 19. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
The HS Code classification for Direct Black 19 depends on the specific grade and form. Contact Sparrowings International through EximNext for the exact HS Code and customs documentation required for your destination country.
To import Direct Black 19 from India, negotiate shipping terms (FOB, CIF, or EXW) directly with Sparrowings International. Ensure you have the necessary import licenses for Products products in your destination country.
Yes, Sparrowings International 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.
For a complete technical data sheet or Certificate of Analysis (COA), send an inquiry directly to Sparrowings International through EximNext.
Sparrowings International offers Direct Black 19 with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Direct Black 19 is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Sparrowings International through our platform.
Sparrowings International maintains international quality certifications. These ensure that the Direct Black 19 meets international quality, safety, and regulatory standards required for cross-border trade.
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Sparrowings International will respond with a detailed wholesale quote including FOB pricing, lead time, and payment options.
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 Sparrowings International.
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