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Direct Black 56 is a sulfonated azo dye with the CAS number 8003-57-4 and molecular formula C36H22N7Na3O10S3, supplied as a fine black powder. It is classified as a direct dye, designed for application on cellulose fibers, leather, and paper without a mordant. Originating from Gujarat, India, it is formulated for high exhaustion rates and deep black shades in industrial dyeing systems.
This dye contains three sulfonate groups, enhancing its water solubility and affinity for protein and cellulose substrates compared to lower-sulfonated analogs. It is commonly used where deeper blacks and improved wash fastness are needed, such as in leather upholstery or high-end paper products. Typical industrial specifications include moisture content under 2%, insoluble matter below 0.5%, and a pH of 1% solution between 6.0 and 7.5, though these are not guaranteed by the supplier.
Buyers in the leather goods, packaging, and specialty paper industries use this dye for large-volume dyeing operations. It is packaged in 25kg polyethylene-lined paper bags, with bulk containers available upon request. The dye is not classified as hazardous under GHS, but dust control is recommended during handling. Buyers should confirm compatibility with their dyeing machinery and rinse cycles before committing to bulk orders.
| CAS Number | 8003-57-4 |
| Molecular Formula | C36H22N7Na3O10S3 |
| Appearance | Fine black powder |
| Solubility | Highly soluble in water, forming a stable black solution |
| Typical Moisture Content | Less than 2% (standard for direct dyes) |
| Typical Insoluble Matter | Less than 0.5% (standard industry limit) |
| pH of 1% Solution | Typically between 6.0 and 7.5 (standard for high-sulfonated direct dyes) |
| Application Type | Direct dye for leather, paper, and textile substrates |
| Typical Dyeing Temperature | 70°C to 95°C (standard range for direct dyes) |
| Packaging | 25kg polyethylene-lined paper bags (common industry format) |
Sparrowings International operates from Ahmedabad, Gujarat, with a registered address in the industrial zone of Nana Chiloda. The company is listed as a supplier of direct dyes with no public claims regarding manufacturing capacity, certifications, or years in business. Its trust tier is classified as harbor, indicating basic verification of legal existence and contact details, but no independent audit or production facility verification is disclosed.
The supplier does not provide information on workforce size, export volume, or client lists. There are no public certifications, test reports, or quality accreditations referenced in the listing. Responses to buyer inquiries are not tracked, with a recorded response rate of 0.00% and zero average response hours. Buyers should treat this as a trading entity and confirm all technical and logistical details directly 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 | Contact Supplier |
| Response Rate | New Supplier |
Before ordering Direct Black 56 from Sparrowings International, verify the dye’s compliance with your region’s chemical regulations, particularly if used in leather for footwear or paper for food packaging. Request a Certificate of Analysis for moisture, insoluble matter, and dye strength. Confirm batch traceability and ensure the safety data sheet matches your country’s GHS implementation.
Logistics are typically managed via sea freight in 25kg bags, with standard Incoterms being FOB Mumbai or CIF destination. Lead times are not disclosed; buyers must request confirmation. Payment terms are commonly 30% advance and 70% against shipping documents. Packaging must be moisture-sealed and labeled with CAS number and hazard warnings if required by destination regulations.
Quality checks should include visual inspection for particle uniformity, solubility testing in distilled water, and spectrophotometric comparison against a reference standard. Buyers should retain a sample from each batch. Documentation must include batch-specific test results, packing list, and commercial invoice. For high-value applications, third-party inspection prior to shipment is strongly recommended.
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When sourcing Direct Black 56 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 56 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 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 56 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 global B2B marketplace. Start your sourcing journey today.
Importing Direct Black 56 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 56 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 56. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
The HS Code classification for Direct Black 56 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 56 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 56 with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Direct Black 56 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 56 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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