PEPTYZ
ANALYTICAL RIGOR & INTEGRITY

Setting the Gold Standard in Reference Purity

We eliminate batch variance. Every peptide, blend, and biochemical calibrated at PEPTYZ passes multi-stage analytical verification with downloadable lot-specific COAs.

Explore Catalog Inspect COA Library
THREE-STAGE ASSAY SYSTEM

Our Analytical Pipeline

No product is packaged or shipped without completing all three verification gates.

01

Solid-Phase Synthesis & In-Process Assay

Synthesis via advanced Fmoc chemistry followed by preparative HPLC purification to separate truncated sequences, diastereomers, and chemical impurities.

02

High-Resolution LC-MS Confirmation

Electrospray Ionization Mass Spectrometry (ESI-MS) confirms exact monoisotopic molecular mass, amino acid stoichiometry, and sequence fidelity against database standards.

03

Third-Party ISO/IEC 17025 HPLC Testing

Independent accredited analytical laboratories perform blind reverse-phase chromatography (RP-HPLC) to establish certified batch purity (>99%) and generate public COAs.

COLD STORAGE & STABILITY

Lyophilized Preservation Under Inert Atmosphere

Peptide compounds are vulnerable to hydrolytic and oxidative degradation. At PEPTYZ, all lyophilized cakes are sealed under ultra-pure argon headspace in glass vials with medical-grade butyl stoppers.

-20°C temperature-controlled warehouse facility
Zero TFA (Trifluoroacetic acid) residual contamination options
Insulated cold-pack shipping with discreet unmarked mailers
Vials in Cold Storage

Have custom institutional requirements?

Our analytical team assists universities, biotech firms, and licensed laboratories.

Contact Laboratory Support