PolyPeptide Group (Hangzhou) (revision 5)

PolyPeptide Group (Hangzhou) Co., Ltd. (trading as PPG; polypeptidegroup.net) is a solid-phase peptide synthesis operation trading as PPG from Hangzhou, Zhejiang, China, incorporated in 2006 and supplying research peptides and raw materials with batch documentation that reproduces the chromatogram behind each purity figure.^[1][2]

The organisation is one of twenty-eight 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]

Incorporated in Hangzhou in 2006, the organisation predates the current research-peptide market and describes a business built on solid-phase synthesis carried out on its own lines rather than on catalogue distribution.^[1] Hangzhou sits in the Yangtze River Delta manufacturing belt; the registry record establishes the entity and the date and nothing beyond them.^[1]

The organisation's own material describes in-house Fmoc solid-phase synthesis with purification and lyophilisation on site. That is a self-published characterisation and is recorded here as one: nothing available to this wiki establishes the manufacturing arrangements behind it, and a registered business scope is a licensing fact rather than a capability finding.^[2][1]

The documentary base is the registry record, the organisation's own material and purchaser-submitted test reports. No independent coverage has been identified, which is a characteristic of the sector rather than of this entity.

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.