Factory-direct peptide manufacturerResearch use only · B2B buyersRFQ reply within 4 business hours
SeqLine Bio — China peptide manufacturerQuote 0

SeqLine Bio · Company fact sheet

Company fact sheet · last reviewed 2026-11-10

SeqLine Bio company fact sheet.

The basic facts about SeqLine Bio on one page, for buyers checking a supplier before an RFQ.

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In brief

Who SeqLine Bio is.

SeqLine Bio is a research peptide manufacturer in Guangzhou, China, operating at seqline.bio. Synthesis, purification, lyophilization, QC testing and packaging run on its own line. It sells direct to B2B buyers, for research use only, and publishes 53 lot COAs in its public library.

Legal / trading name shown onlineSeqLine Bio
Operating addressScience City International Business Incubator Industrial Park, Huangpu District, Guangzhou, China
广州市黄埔区科学城国际企业孵化器产业园
Primary domainseqline.bio
Primary contact[email protected]; WhatsApp RFQ button on the website
Public COA library/coa/, with 53 current public entries; page content reviewed on 2026-11-10
Last reviewed2026-11-10

Scope

What SeqLine Bio does and does not provide.

Provides

  • Research peptides as raw powder or lyophilized vials, for B2B buyers.
  • Quotations for sample kits, production lots and private-label runs.
  • Neutral labels by default; your own label, carton and insert from 100 kits.
  • A COA for each published lot, with the HPLC purity result and MS molecular-weight identity.
  • A public COA library. Buyers are welcome to test material at a laboratory of their choice.

Does not provide

  • Consumer sales, dosing guidance or medical advice.
  • Invented certificate numbers, registrations, laboratory names or testimonials.
  • Claims that HPLC purity proves fill quantity, sterility, endotoxin level or suitability for any use.
  • A payment link before company details, destination and research use are confirmed.
  • An older or generic COA presented as the document for a current lot.

Order sizes

How orders are sized.

Sample orders start at 1 kit (10 vials) for most catalog compounds. Private-label runs start at 100 kits (1,000 vials). Final quantities, eligible compounds and lead times are confirmed in the quotation.

Sample kit

To check the material and the lot COA before ordering more. Confirmed stock: within 3 business days after written payment confirmation; samples requiring preparation: 3–7 business days after specification and payment confirmation. Stock and the dispatch date are confirmed before payment. Transit time is additional.

Production lot

For larger and repeat orders. Ships 7–15 business days after specification and payment confirmation.

Private label

Your label, carton or insert, quoted once artwork and quantity are agreed.

Delivery

DDP for eligible destinations.

SeqLine Bio offers DDP shipping for eligible B2B orders. The written quotation confirms the products, named delivery place, Incoterms® 2020, importer of record, freight, clearance, duties and import taxes before payment.

Sample and production preparation times are dispatch windows. Transit and customs processing take additional time and are estimated for the confirmed route. Read Shipping & DDP terms →

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