CUSTOM SYNTHESIS
Bring us a sequence. We deliver a vial.
For labs that need a peptide we do not stock in the catalog. We run pilot 10 mg through scale-up 5 g per cycle. Every custom lot ships with analytical HPLC, mass-spec confirmation, and a per-lot certificate. 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
- • SPPS synthesis on automated synthesizer with sequence verified at each coupling cycle
- • 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
- • 24-month −80°C retention aliquot held in our archive
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.