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Direct Red 13 is a synthetic azo dye with the chemical formula C32H22N6Na2O7S2 and CAS number 1937-35-5. It is supplied as a fine powder with high solubility in water and is classified under EINECS 217-709-8. The dye is designed for application on leather, paper, and polyamide fibers, offering a bright red shade with moderate lightfastness. It is manufactured in Gujarat, India, and distributed under the Sparrowings brand.
This dye is formulated for direct application without mordants, making it suitable for cost-sensitive dyeing processes. Its molecular structure allows penetration into porous substrates like paper and untreated leather, but it is not recommended for cotton or wool without after-treatment. Typical concentrations range from 0.5% to 3% owf depending on substrate depth. The powder form ensures uniform dispersion in aqueous baths and minimizes clumping during mixing.
Buyers in the textile and leather finishing industries use Direct Red 13 for low-cost, high-volume dyeing of synthetic and semi-synthetic materials. The product is exported in sealed plastic drums or polyethylene-lined bags, with standard packaging of 25 kg net weight. Buyers should confirm compatibility with their dyeing equipment and request batch-specific spectral data for shade matching. Payment terms and lead time must be confirmed directly with the supplier.
| Chemical Name | Direct Red 13 |
| CAS Number | 1937-35-5 |
| EINECS Number | 217-709-8 |
| Molecular Formula | C32H22N6Na2O7S2 |
| Appearance | Red powder |
| Solubility | Soluble in water, insoluble in ethanol |
| Typical Dyeing Concentration | 0.5% - 3% owf (on weight of fabric) for leather and paper |
| Typical pH Range for Application | 4.5 - 7.0 (standard for direct dyes) |
| Packaging | 25 kg net in polyethylene-lined bags (custom packaging available) |
| Storage Stability | Stable under dry conditions below 30°C (typical for azo dyes) |
Sparrowings International is a manufacturer and supplier of direct dyes based in Ahmedabad, Gujarat, India. The supplier's listing identifies them as the brand owner of Direct Red 13 and provides their physical address, indicating local production. No claims are made regarding production volume, export history, or client names. Trust signals are limited to harbor-tier verification and product-specific chemical data.
The profile does not mention certifications, ISO status, or laboratory facilities. There is no reference to years in operation, employee count, or R&D capabilities. All information is confined to the chemical identity and application scope of the dye. Buyers must request batch-specific test reports and safety data sheets before procurement to confirm compliance with local regulations.
| 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 Red 13, verify the supplier's batch-specific HPLC purity report and confirm compliance with your country's chemical import regulations, especially regarding aromatic amines. Request a safety data sheet (SDS) that includes environmental and health hazard classifications. Ensure the dye is not restricted under REACH, Oeko-Tex, or local textile standards.
Confirm Incoterms, lead time, and packaging details - standard is 25 kg bags in polyethylene-lined drums. Lead time is typically 15 to 25 days after payment, depending on production scheduling. Payment is usually by TT or LC; avoid cash-on-delivery terms. Clarify whether the supplier provides customs documentation such as a Certificate of Origin and chemical declaration forms.
Upon receipt, perform a visual inspection for clumping or discoloration, which may indicate moisture exposure. Test solubility in water and compare the absorption spectrum to the supplier's provided data. Retain a sample from each batch for future shade matching. Conduct a small-scale dyeing trial on your substrate before full production to validate color yield and fastness properties.
Compare alternatives, find similar products and connect with verified suppliers
When sourcing Direct Red 13 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 Red 13 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 import export marketplace designed to make cross-border trade secure and efficient.
Finding trustworthy partners is the foundation of successful importing. The supplier of this Direct Red 13 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 online B2B marketplace. Start your sourcing journey today.
Importing Direct Red 13 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 Red 13 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 Red 13. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
The HS Code classification for Direct Red 13 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 Red 13 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 Red 13 with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Direct Red 13 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 Red 13 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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