Chinese Peptide Company (revision 31)

Chinese Peptide Company Co., Ltd. (trading as CPC; chinesepeptidecompany.net) is a peptide manufacturer trading as CPC from Hangzhou, Zhejiang, China, incorporated in 2001, with a catalogue spanning research peptides and custom synthesis and a documented history in the peptide-chemistry sector.^[1][2]

The organisation is one of twenty covered on PeptidePedia under Project:Vendor notability. Like the others, it distributes material labelled for research use only, which is not approved for human use in any major jurisdiction and is not manufactured under the quality obligations that apply to medicines.^[3]

This article describes what is verifiable. Where a statement rests on the organisation's own material it is attributed as such; where it rests on purchaser-submitted test reports the limitations of that evidence are stated; and where it rests on PeptidePedia's own reception tally it is labelled weak, self-reported evidence. Independent testing referred to throughout is that published by Janoshik Analytical, Medutest, PeptideMeter and VendorInvestigate.^[4]

Incorporated in 2001, the organisation is one of the two oldest covered on this wiki and predates the research-peptide retail market substantially.^[1] That history is the strongest element of its notability case: an entity with two decades of continuous operation in peptide chemistry is describable from more than its own marketing, and its name appears in technical contexts unconnected with the research-compound trade.

The name is generic to the point of being a claim: "Chinese Peptide Company" reads as a description of a category rather than an identifier. Editors have discussed whether an encyclopedia should use it as an article title at all, given the risk that a reader takes it as a generic reference; the conclusion was that the registered legal name is the registered legal name, and that a hatnote is the appropriate remedy.

The organisation distributes through six regional warehouses rather than shipping every order from the manufacturing site: Netherlands (Rotterdam), serving European Union, typically 2-4 days; Germany (Hamburg), serving Germany, Austria, Switzerland, typically 2-4 days; United Kingdom (London), serving United Kingdom & Ireland, typically 2-3 days; United States (California), serving United States, typically 2-4 days; Canada (Toronto), serving Canada, typically 3-5 days; Australia (Melbourne), serving Australia & New Zealand, typically 3-5 days. Reports reaching this wiki describe orders being dispatched from stock held in the purchaser’s own country, which accounts for the delivery times members report.

Purchaser reports describe lyophilised material in Type I glass vials with crimped closures, accompanied by a batch certificate that in this case has more often than elsewhere included a water figure alongside the purity figure.^[5] Where present, a water figure is what makes a purity figure interpretable as a mass, and its inclusion is a documentation practice worth recording because it is uncommon.^[6]

Custom synthesis appears in the organisation's own listings, which if accurate implies in-house synthesis capability rather than repackaging. This wiki has no independent corroboration of that, and self-published statements about capability are not evidence of it.^[2]

The presence of a custom-synthesis line is the distinguishing catalogue feature. A supplier that will synthesise an arbitrary sequence is doing something different from one that lists a fixed range, and the two should not be described in the same terms.^[2]