从China供应商批发进口Acetyl-L-Carnitine — FOB条款
Sourcing Acetyl-l-carnitine from Zhenyibio Technology Inc. - China Import Guide
Before placing an order with Zhenyibio Technology Inc., verify the supplier's business licence, export licence for pharmaceutical intermediates, and whether they hold any GMP, ISO 9001, or ISO 22000 certification. Request a current certificate of analysis for the specific batch you will receive, not a generic specification sheet. Confirm that the CAS number on the COA matches 5080-50-2 exactly, and cross-check the molecular formula and molecular weight against your internal standards. Given the 0.00% response rate, establish direct communication via email or phone before relying on platform messaging alone, and consider requesting references from other importers who have purchased this specific compound from this supplier.
Logistics and lead time must be confirmed directly with Zhenyibio Technology Inc., as the listing provides no estimated dispatch or production schedule. Standard Incoterms for API and nutraceutical ingredient exports from China are FOB Shanghai/Ningbo or CIP destination airport, though DAP terms may be negotiated for established buyers. Payment terms typically range from 100% advance for new customers to 30% deposit with 70% against B/L copy for repeat orders with credit history. Ask specifically about customs classification (HS code 2923.90 or 2933.99 depending on local interpretation), whether the supplier provides the China Certificate of Origin, and if they can assist with pre-shipment inspection agency requirements for your destination country.
Quality assurance on receipt should include visual inspection for colour consistency (white or almost white crystalline powder), odour check (should be essentially odourless), and verification that the packaging integrity has been maintained during transit. Retain a sample from each delivery for independent testing: confirm identity by FT-IR or NMR, purity by HPLC with your validated method, and specific rotation by polarimetry. Compare your results against the supplier's COA and establish acceptance criteria for future batches. For pharmaceutical use, consider conducting a full incoming materials qualification including microbial limits, endotoxin testing, and nitrosamine risk assessment, as acetyl-L-carnitine is an amino acid derivative where process-related impurities require vigilance.
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