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Direct Yellow 4, with CAS number 3051-11-4 and EINECS 221-267-1, is a sodium salt of a disulfonated azo dye supplied as a fine yellow powder by Sparrowings International. It is designed for dyeing protein and polyamide fibers, and is commonly used in leather and paper coloring. The molecular formula C26H18N4Na2O8S2 indicates high sulfonation, which enhances water solubility and affinity for amide groups.
This dye exhibits strong affinity for collagen in leather and cellulose fibers in paper, achieving bright yellow shades with minimal mordanting. Typical dyeing temperatures range from 70°C to 90°C, with optimal results in slightly acidic to neutral conditions. The powder form ensures consistent dispersion, though particle size distribution is not specified. Standard packaging is in 25kg multi-layer paper bags with moisture-resistant lining.
Buyers in the leather finishing, paper coating, and specialty textile sectors use this dye for low-cost, high-visibility applications. It is not recommended for outdoor use due to limited lightfastness. The supplier does not specify minimum order quantities or lead times. Buyers should test dye uptake on their substrate and confirm batch reproducibility before scaling production.
| C.I. Number | 19550 |
| CAS Number | 3051-11-4 |
| EINECS Number | 221-267-1 |
| Molecular Formula | C26H18N4Na2O8S2 |
| Appearance | Yellow powder |
| Solubility | Highly soluble in water, forming a clear yellow solution |
| Typical Sulfonate Content | Standard for direct yellow dyes: 2-3 sulfonate groups per molecule |
| Typical Particle Size | Typical for powdered dyes: 90% passes through 120-mesh sieve |
| Typical Moisture Content | Typical for direct dyes: less than 4% by weight |
| Packaging | 25kg multi-layer kraft paper bags with inner polyethylene lining |
Sparrowings International is based in Ahmedabad, Gujarat, and functions as a supplier of direct dyes for industrial applications. The company has a harbor-tier trust score, indicating minimal platform verification. No details are provided about manufacturing, certifications, years of operation, or workforce size.
The supplier does not disclose revenue, client names, or production volume. Response metrics are absent, suggesting no active communication on the platform. Product data is limited to basic chemical identifiers and usage notes. Buyers should treat this as a commodity reseller and validate quality through independent testing before committing to bulk purchases.
| 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 Yellow 4 from Sparrowings International, confirm the CAS and EINECS numbers match your regulatory requirements. Request a certificate of analysis showing purity, moisture, and insoluble residue levels. Ensure the product is free from banned substances under REACH or FDA guidelines if used in regulated industries.
Logistics are typically shipped from Ahmedabad via road to major ports like Mundra or Kandla. Lead time is not specified; buyers must confirm production scheduling directly. Incoterms are not listed, but FOB Ahmedabad or CIF destination are common. Payment terms are undisclosed, but advance payment or LC is standard for unverified suppliers.
Perform a pre-shipment inspection for color consistency, packaging integrity, and label accuracy. Conduct a small-scale dyeing trial using your exact substrate and process. Retain a sample of each batch for comparison. Ensure all documentation, including SDS and commercial invoice, correctly identifies the chemical identity and origin.
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When sourcing Direct Yellow 4 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 Yellow 4 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 Yellow 4 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 Yellow 4 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 Yellow 4 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 Yellow 4. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
The HS Code classification for Direct Yellow 4 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 Yellow 4 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 Yellow 4 with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Direct Yellow 4 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 Yellow 4 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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