Import Tryptophan — Buy in wholesale FOB from Supplier in China
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Tryptophan
Feed Grade L‑Tryptophan supplied by Golden Gain Inc.Ltd is an amino acid powder with the chemical formula C11H14N2O2. The product is marketed with a purity of 98 % or higher and is classified as feed grade for animal nutrition. It is supplied in bulk powder form, typically packaged in 25 kg bags. The listing does not provide a specific HS code, so buyers should confirm the appropriate classification for customs.
Typical industry specifications for feed grade tryptophan include moisture content below 0.5 % and particle size distribution suitable for mixing into pelleted feeds. Storage should be in a cool, dry environment to prevent degradation, with recommended temperatures below 25 °C. The supplier mentions ISO‑based quality control, though exact certification documents are not listed. Bulk supply options allow flexibility for large‑scale feed manufacturers.
Applications span poultry, swine, ruminant and aquaculture feeds, where tryptophan supports protein synthesis and serotonin production. Importers targeting feed mills in Southeast Asia or Latin America often source this amino acid to improve growth performance. Trade terms such as FOB or CIF are referenced, and payment methods like L/C and T/T are indicated; confirm the specific conditions with Golden Gain before contracting.
| Material | L‑Tryptophan (C11H14N2O2) |
| Purity | 98 % (typical) |
| Grade | Feed Grade |
| Form | Powder (standard) |
| Moisture Content | <0.5 % (typical) |
| Particle Size | 200 to 400 µm (standard) |
| Storage | Cool, dry, below 25 °C (typical) |
| Packaging | Standard 25 kg bulk bags or 1 kg sachets (typical) |
| Bulk Density | 0.8 g/cm³ (standard) |
| Solubility | 10 g/L in water at 25 °C (standard) |
Golden Gain Inc.Ltd is based in Shouguang, Shandong Province, China (postal code 86). The supplier holds a harbour‑tier verification, though its response rate is currently recorded as 0 % with no average response time logged.
The company lists feed grade amino acids, including L‑Tryptophan, and cites ISO‑based quality control processes. No further corporate details such as founding year or client list are provided in the source data.
Feed Grade L-Tryptophan is a high-purity amino acid powder widely used as a nutritional supplement in poultry, swine, and aquaculture feeds. With a typical purity of 98% or above, this product ranks as the third most-used feed amino acid globally after L-Methionine and L-Lysine. It plays a critical role in protein synthesis, serotonin production, and overall animal growth performance, making it a high-demand import commodity for feed mills and animal nutrition companies across Southeast Asia, Latin America, and beyond.
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Sourcing Tryptophan from Golden Gain Inc.Ltd. - China Import Guide
Before ordering, confirm that the L‑Tryptophan batch meets the stated 98 % purity and that a current Certificate of Analysis is provided. Verify the moisture content and particle size data to ensure compatibility with your feed formulation. Request any ISO or other quality certificates to validate the supplier’s quality management system.
Discuss Incoterms such as FOB Shouguang or CIF destination port, and ask the supplier to specify expected lead times for the required volume. While the listing does not list exact production schedules, negotiate a realistic shipping timeline and agree on payment terms, typically L/C or T/T. Clarify freight responsibilities and insurance coverage for the cargo.
Plan for an independent laboratory test on a sample to confirm amino acid profile and absence of contaminants. Ensure that the supplier can provide batch records, stability data and full shipping documentation, including commercial invoice, packing list and certificate of origin. These measures help secure product quality and smooth customs clearance.
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100 listingsTop Verified Suppliers for Tryptophan
30 suppliersBuy Tryptophan in Bulk — Verified Supplier in China
When sourcing Tryptophan for your business, securing the right balance of quality and cost is essential. Golden Gain Inc.Ltd., a verified supplier based in China, offers this product with key specifications including Feed Grade / L-Tryptophan, Min. 98% L-Tryptophan, and White crystalline powder. By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $40007000/Bags and manage bulk orders with a minimum order quantity (MOQ) of 1 Bags. This product is actively traded under HS Code 2922.49, making it a staple in the Chemicals & Allied Products sector with strong demand from importing countries worldwide.
Tryptophan Specifications, Trade Terms & Pricing
Importing Tryptophan requires careful attention to shipping logistics, customs compliance, and secure payment terms. Golden Gain Inc.Ltd. offers flexible shipping options such as Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. To ensure a smooth transaction, buyers should verify import duties for HS Code 2922.49 in their destination country. 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 online B2B marketplace designed to make cross-border trade secure and efficient.
About Golden Gain Inc.Ltd. — Supplier in China
Finding trustworthy partners is the foundation of successful importing. The supplier of this Tryptophan 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 Chemicals & Allied Products category and connect with top-tier exporters on our comprehensive B2B marketplace. Start your sourcing journey today.
Import Tryptophan — Shipping, Logistics & Customs
Importing Tryptophan 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 for HS Code 2922.49 in their destination country. Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P).
Frequently Asked Questions About Tryptophan
What is the wholesale price of Tryptophan?
The current listed wholesale price for Tryptophan from Golden Gain Inc.Ltd. is $40007000/Bags on FOB terms from China. Prices may vary depending on order volume, packaging, and destination. For the most accurate bulk quote, send a direct RFQ to Golden Gain Inc.Ltd. through EximNext.
What is the Minimum Order Quantity (MOQ) for Tryptophan?
The supplier, Golden Gain Inc.Ltd., has set a Minimum Order Quantity (MOQ) of 1 Bags for Tryptophan. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
What is the HS Code for Tryptophan?
For international shipping and customs clearance, Tryptophan is classified under HS Code 2922.49. Buyers should verify their local customs regulations to determine applicable import duties and taxes for this classification.
How can I import Tryptophan from China?
To import Tryptophan from China, negotiate shipping terms (FOB, CIF, or EXW) directly with Golden Gain Inc.Ltd.. Ensure you have the necessary import licenses for Chemicals & Allied Products products in your destination country.
Is Golden Gain Inc.Ltd. a verified supplier?
Yes, Golden Gain Inc.Ltd. 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.
What are the key specifications of Tryptophan?
The key specifications for Tryptophan supplied by Golden Gain Inc.Ltd. include Feed Grade / L-Tryptophan, Min. 98% L-Tryptophan, and White crystalline powder. For a complete technical data sheet or Certificate of Analysis (COA), send an inquiry directly to the supplier through EximNext.
What packaging options are available for bulk orders of Tryptophan?
Golden Gain Inc.Ltd. offers Tryptophan with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Which countries import Tryptophan the most?
Tryptophan is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Golden Gain Inc.Ltd. through our platform.
What certifications does this Tryptophan supplier hold?
Golden Gain Inc.Ltd. maintains international quality certifications. These ensure that the Tryptophan meets international quality, safety, and regulatory standards required for cross-border trade.
How do I place a bulk order for Tryptophan on EximNext?
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Golden Gain Inc.Ltd. will respond with a detailed wholesale quote including FOB pricing, lead time, and payment options.
What payment methods are accepted?
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 Golden Gain Inc.Ltd..
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