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Open data

The dataset

Every language-neutral, verifiable field on this site — sequences, chemistry, identifiers, regulatory status and trial footprints — as one downloadable file. Free to reuse with attribution.

Coverage right now

Peptide profiles
250
With a one-letter sequence
141
With source-supported formula & mass
209
Cross-linked to PubChem / IUPHAR
226
With a ClinicalTrials.gov footprint
196
With curated structure blocks
122

Files

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Recent changes

What the pipeline observed changing on its most recent runs. Every profile carries its own dated change log.

  1. ACTH2 registered studies added on ClinicalTrials.gov (now 346).
  2. Adropin1 registered study added on ClinicalTrials.gov (now 9).
  3. Amylin3 registered studies added on ClinicalTrials.gov (now 109).
  4. Angiotensin II2 registered studies added on ClinicalTrials.gov (now 356).
  5. Anrikefon3 registered studies added on ClinicalTrials.gov (now 13).
  6. B-type natriuretic peptide1 registered study added on ClinicalTrials.gov (now 291).
  7. Beta-endorphinPubChem formula updated to C158H251N39O46S.
  8. Beta-endorphin1 registered study added on ClinicalTrials.gov (now 180).
  9. Bombesin1 registered study added on ClinicalTrials.gov (now 31).
  10. Bremelanotide (PT-141)Highest registered trial phase moved from phase 3 to phase 4.
  11. Bremelanotide (PT-141)7 registered studies added on ClinicalTrials.gov (now 10).
  12. C-peptideHighest registered trial phase moved from phase 4 to phase 3.
  13. C-peptide13 registered studies added on ClinicalTrials.gov (now 2353).
  14. Cagrilintide1 registered study added on ClinicalTrials.gov (now 44).
  15. Calcitonin3 registered studies added on ClinicalTrials.gov (now 153).

Fields

FieldMeaningSource
slug, name, aliasesStable identifier, display name, synonyms and codesEditorial
category, type, function, contextCluster, chemical class, mechanism summary, clinical/research contextEditorial
length_aa, sequence, modified_sequenceResidue count, one-letter sequence (X = non-canonical), full sequence with modificationsEditorial · IUPHAR
formula, average_mass_daMolecular formula and average mass in daltonsPubChem · editorial
reference_mass_da, reference_mass_basisSelected-form mass and its average or isotope-specific basis; isotope-specific values have no average_mass_daPrimary molecular record · regulator
half_life, receptors, statusPlasma half-life, receptor targets, regulatory / development statusEditorial (primary literature) · IUPHAR approval flag
identifiers.*PubChem CID, IUPHAR ligand ID, ChEMBL, DrugBank, CAS RN, UNIIIUPHAR · PubChem
clinical_trials.*Registered-study count, highest phase, active count, snapshot dateClinicalTrials.gov API v2
sources, last_reviewedWhich source each record's chemistry came from; date of last editorial reviewPipeline · editorial
reference_confidence, tool_eligible, chemistry_identityReference confidence, calculation eligibility, molecular form and unresolved conflictsSource-identity assessment · editorial
source_snapshot_dates, page_data_modified_atRegistry observation dates and latest recorded change; separate from scientific reviewPipeline · dated content metadata
canadian_product_statusProduct-specific Canadian status, DIN and official source; unknown when not verifiedHealth Canada Drug Product Database

How it is built

Profiles combine editorial summaries, cited literature and dated registry snapshots. The pipeline matches names and aliases against IUPHAR/BPS and PubChem, then records source identities and observations. Conflicting molecular forms are withheld from reference fields and calculations until resolved; their confidence notes explain why. ClinicalTrials.gov snapshots describe registered studies. Source observation, content update and scientific review dates are recorded separately; a missing review date remains unknown.

Licence and attribution

Peptides Codex's original editorial contributions are offered under Creative Commons Attribution 4.0 (CC BY 4.0), with credit to “Peptides Codex (peptidescodex.com)” and a link back. Incorporated upstream material retains its own terms: the IUPHAR/BPS database uses ODbL and its contents CC BY-SA 4.0. NCBI's public-domain policy for government-created information does not grant blanket rights to all contributed or licensed PubChem material. Check the relevant source notices when reusing or commercially redistributing records.

IUPHAR/BPS · NCBI / PubChem

What it is not

It is an educational reference, not a product catalogue, a formulary or medical advice. A ClinicalTrials.gov count is a registry footprint, not evidence of efficacy. Regulatory status reflects the last review date on each record; verify against the regulator before relying on it.

How to cite

Peptides Codex. The Peptides Codex peptide directory dataset, version 2026-10-05. https://peptidescodex.com/data (CC BY 4.0).

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Cite this: Peptides Codex — The dataset
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