Raw Peptide Powders
QSC supplies research peptides in lyophilised powder form — the equivalent of the active pharmaceutical ingredient (API) for research applications. This page details the powder specifications, analytical data, and ordering process for bulk raw powder procurement.
Order Raw Peptide Powders
All compounds as lyophilised powder. ≥99% HPLC. Janoshik COA. Direct manufacturer.
Order at QSC →Powder Specifications
| Specification | QSC Standard | Test Method |
|---|---|---|
| Purity | ≥99% by peak area | RP-HPLC, C18, UV 220nm |
| Identity | MW ±1 Da (MH⁺) | ESI-MS or MALDI-TOF |
| Appearance | White to off-white lyophilised powder | Visual inspection |
| COA | Janoshik (independent, verifiable) | Third-party laboratory |
| Storage | ≤ –20°C (long-term) | Per compound stability data |
| Reconstitution | Bacteriostatic water (BAC water) | Standard research protocol |
Manufacturing Origin
All QSC raw powders are produced via Fmoc solid-phase peptide synthesis (SPPS) at the Qingdao manufacturing facility or through QSC's vetted partner synthesis network. Each compound is purified by preparative reverse-phase HPLC to ≥99% purity before lyophilisation. The manufacturing process is fully documented at qscpeptidelab.com.
Handling & Storage Requirements
- Store sealed vials at –20°C for long-term stability (2+ years)
- 2–8°C acceptable for short-to-medium term (6–18 months)
- Protect from light, moisture, and repeated freeze-thaw
- Allow vials to reach room temperature before opening to prevent condensation ingress
- Once reconstituted, store at 2–8°C in bacteriostatic water for up to 6 weeks
Research Use Only. QSC raw powders are for laboratory research use only. Not for human consumption. Not for compounding without appropriate regulatory authorisation.