# SteriGenix Analytical

> Independent US-based contract laboratory providing HPLC purity, LC-MS identity, LAL endotoxin, Karl Fischer water content, and residual solvent testing for research-grade peptides and small-molecule compounds. Every batch is issued a publicly verifiable Certificate of Analysis.

## Pages

- [Home](/): Overview of SteriGenix's independent peptide testing services and verifiable COAs.
- [Peptide Testing](/peptide-testing): How third-party peptide testing works — sample requirements, methods, turnaround.
- [Peptide Purity Testing](/peptide-purity-testing): How peptide purity is measured by RP-HPLC and confirmed by LC-MS.
- [Peptide COA](/peptide-coa): Anatomy of a peptide Certificate of Analysis and how to verify one is authentic.
- [Third-Party Testing](/third-party-testing): Why independent testing matters and what a real third-party lab provides.
- [Services](/services): Full list of analytical services offered.
- [Methods](/methods): Method references (USP, EP, ICH) used in the lab.
- [Instrumentation](/instrumentation): HPLC, LC-MS, LAL, and Karl Fischer instruments on the floor.
- [Pricing](/pricing): Per-batch pricing and the turnaround calculator.
- [Verify a COA](/verify): Public batch-number lookup to verify any SteriGenix COA.
- [About](/about): About SteriGenix Analytical.
- [Contact](/contact): Contact form and email for sample submissions.
- [FAQ](/faq): Frequently asked questions about peptide testing and COAs.

## Guides

- [Testing Before Selling](/guides/testing-before-selling): QC guide for research-peptide suppliers.

## Comparisons

- [Janoshik Alternative](/compare/janoshik-alternative): Independent alternative to Janoshik for peptide purity and identity testing.

## Optional

- [Sample Submission Agreement](/sample-agreement)
- [Terms of Service](/terms)
- [Privacy Policy](/privacy)