Custom and OEM

Custom peptide manufacturing

From a first gram for evaluation to repeat kilogram production. QCL runs synthesis, purification, lyophilization and vial filling in-house, so one team owns your specification from start to finish.

Scale
Gram to kilogram
Purity
Grades to [≥99%]
Lyophilization
In-house freeze-drying
Modifications
Built to your sequence
Documentation
COA, HPLC, MS per batch
Confidentiality
NDA before details

Custom manufacturing specifications

General
Length[Up to XX amino acids]
Purity[≥95%, ≥98%, ≥99%] by HPLC
Quantity[1 g to X kg per batch]
Salt form[Acetate (default), TFA, HCl]
Delivery formBulk lyophilized powder, or lyophilized vials filled to your fill weight
QC testing
StandardHPLC purity, mass spectrometry identity, appearance
On request *[Peptide content, water content, residual solvents, endotoxin, third-party lab report]
* Optional tests are quoted separately.
Get a quote

Services

Use one service or combine them into a single program.

Custom synthesis

Your sequence, made to an agreed purity and quantity.

Peptide modifications

[Acetylation, amidation, cyclization, lipidation, labeling]

Lyophilization

Cycle development and freeze-drying of bulk or vials.

Vial filling and OEM

Filling, capping, labeling and kitting under your brand.

Formulation support

Blends and excipient selection for stable lyophilized products.

Analytical services

Method setup and batch testing with full reports.

[Photo: synthesis or purification equipment]
From sample to supply

One process from first gram to repeat kilograms

The method used for your sample batch is the one scaled for production, so specifications and impurity profile stay consistent between orders.

  • Dedicated account manager, English and Chinese
  • Batch records retained for [X] years
  • Customer audits welcome [confirm]

Documentation

Each shipment includes a certificate of analysis with HPLC and MS data. Documents are also sent by email before dispatch.

Packaging

[Sealed aluminum bags or amber vials, with desiccant, labeled with product, batch number and net weight.]

Delivery

[Cold-chain shipping to the US, Europe, Southeast Asia and Brazil. Incoterms and carrier agreed per order.]

Start your custom project

Send the sequence or product, quantity and target purity. We reply within [X] business days.

Submit your requirements