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Defiance International

Supplies research-only synthetic peptides, each lot released with an HPLC purity chromatogram and mass-spec identity check.

Actively maintained

Knowledge
defianceinternational.io ↗
Open defianceinternational.ioAlternativesSet it up for my teamIs Defiance International yours? Claim the card →
At a glanceswept Oct 25, 2026

≈ 4visits/mo

Little sign of use · estimate, read Oct 14, 2026

For
researchers buying synthetic peptides for lab work, needing verified identity and purity
Activity
Actively maintainedsite updated yesterday
Used for
  • check a vial's code against its signed certificate
  • review HPLC purity and mass spec results before use
  • trace a lot's method and scope in the verifier
Worth knowingcomputed from what we read · each with its source
Pricing

Price not read

Trial & discounts

Your datawhat they publish, each line with its page · read Oct 20, 2026

These are Defiance International's own statements, read from its pages. We did not audit them. A line that is missing was not found on the pages we read; it does not mean the practice is absent.

How a program reaches itfound, not claimed · read Oct 20, 2026
  • MCP serverio.defianceinternational/storefrontverified in the MCP registry
  • Stateanswers, 5 toolschecked 2026-10-20
  • Address to connectdefianceinternational.io/mcp

MCP server details →

This card as JSON, for your agent →

Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.

Alternatives in Knowledgeby use, among tools still maintained

Figure and bar: visits/mo, estimate · year: online since

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Questions this page answers
  • What is Defiance International?

    Supplies research-only synthetic peptides, each lot released with an HPLC purity chromatogram and mass-spec identity check. It is listed in the Atlas under Knowledge.

  • Who is Defiance International for?

    researchers buying synthetic peptides for lab work, needing verified identity and purity

  • Do people use Defiance International?

    Little sign of use: ≈ 4 visits/mo · estimate, 2026-10.

  • Is Defiance International still maintained?

    Actively maintained: site updated yesterday.

  • Is Defiance International safe?

    We do not audit vendors. What Defiance International publishes, read 2026-10-20: a trust center.

  • Does Defiance International give refunds?

    In its own words (terms of service, 2026-10-20): “Refunds for unshipped cancelled orders include the amount paid for the cancelled goods and the applicable tax and delivery charges.”

  • What are alternatives to Defiance International?

    In Knowledge, by use: Amass, AI to AI Hub, Remy Research, ReportAgent, Syntology, Perplexity.

How we read a tool

No votes, no reviews, no vendor claims. Every week a crawler reads each tool's own site and a few public registries, and the words on the card are bands over what it read.

  • Use: visits to the site (estimated), installs from npm and PyPI, presence in Chrome's usage report.
  • Activity: the newest release on GitHub, npm or PyPI; the newest dated page on the site; open roles on a public jobs board.
  • Price: the vendor's own pricing page, read with the date. A figure is printed only when it is on that page.
  • The line and the use cases are written by us from the homepage, one tool at a time, and refused when they repeat the vendor's marketing.

How AI assistants read each site — the reading vendors ask us about — is on each tool's own visibility page.

How we read every tool → · By INITE Atlas Desk