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The Standard.

Every Chromatide compound is synthesized, purified, and documented for a single audience: the working researcher who needs reference material that holds up to peer review.

≥99%
HPLC Purity Floor
MS
Mass-Spec Confirmed
LAL
Endotoxin Tested
3rd
Party Verified
QC Pipeline

How a vial gets to your bench.

Synthesis happens at a US-based contract manufacturer working under documented SOPs. Each batch is sampled and submitted to an independent analytical lab — we do not run our own assays in-house, by design. The independent COA is the only document we'll stand behind, and we share it on request via email rather than shipping it with the product.

What's on the COA

  • HPLC — primary purity quantification, ≥99% acceptance threshold
  • Mass spectrometry — identity confirmation against expected molecular weight
  • Residual solvent — ICH Q3C class 2 / class 3 limits
  • Loss on drying — moisture content of lyophilized cake
  • LAL endotoxin — for compounds where it matters to the application
  • Appearance & reconstitution — visual and dissolution check
Important. COAs document analytical purity — not safety, efficacy, or fitness for any biological application in a living organism. Chromatide makes no human-use claim and does not provide dosing, protocol, or therapeutic guidance.

Storage & handling

Lyophilized vials ship in insulated mailers with phase-change packs. On arrival, transfer to a −20°C freezer for long-term storage. Reconstitute only what you need; reconstituted material is generally stable at 2–8°C for 30 days but should be validated for your specific application.

Who we sell to

Chromatide sells to researchers, independent labs, and qualified individuals 21+ who acknowledge the research-only intended use at checkout. We do not ship to jurisdictions where the import of research peptides is restricted, and we reserve the right to decline orders that don't pass our screening.

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