CUSTOM SYNTHESIS
Bring us a sequence. We deliver a vial.
For labs that need a peptide we do not stock in the catalog. We coordinate custom synthesis through vetted manufacturing partners, from pilot (10 mg) to scale-up (5 g). Every custom lot ships with its analytical HPLC, mass-spec confirmation, and a per-lot certificate of analysis. Indicate purity target and any constraints below, and we will quote within 24 hours.
SCALE
10 mg → 5 g
Per synthesis cycle. Multi-cycle for larger lots.
PURITY
≥95% standard
≥99% available. Cost scales with target purity.
TURNAROUND
3–6 weeks
Quote within 24h. NDA in place before sequence disclosure.
Request a quote
All fields required unless noted. Submitting sends an email to wholesale@xfactorpeptidelab.com; we will respond within one business day.
What's included
- • Made to specification by vetted manufacturing partners, delivered with a per-lot certificate of analysis
- • Reversed-phase preparative HPLC purification
- • Mass spectrometry (ESI-MS or MALDI-TOF) confirming monoisotopic mass within ±0.5 Da
- • Final analytical HPLC for the lot certificate (purity, retention time, gradient method)
- • Endotoxin assay on request
- • Tamper-evident vial fill, lot number, per-lot COA included in shipment
- • Per-lot certificate of analysis retained on file
Frequently asked
Do you sign NDAs?
Yes. We will send our standard mutual NDA, or we will sign yours.
Who owns the IP?
You do. We make to your spec; you retain all rights to the sequence and any results.
Do you do GMP?
No. We are research-grade only. For GMP scale-up we refer out to partners.
Can you do white-label COAs?
For institutional buyers with volume contracts, yes — ask in the form above.