From 2023 to 2026, this report tracks changes to chemical Registry Numbers within the Medical Subject Headings (MeSH) controlled vocabulary. It lists modifications to Descriptor and Supplementary Concept Records, sourced from datadiscovery.nlm.nih.gov. The data is available in CSV, JSON, XML, and RDF formats.
Use Cases
- Track changes to chemical identifiers (REPLACED_VALUE, REPLACEMENT_VALUE) over time (Year) for database synchronization.
- Audit updates to MeSH records (UPDATED_FIELD, UI) using the change notes (NOTES).
- Map deprecated chemical registry numbers to their current values (REPLACED_VALUE, REPLACEMENT_VALUE) for data integration pipelines.
Strengths
- Covers a multi-year period from 2023 to 2026.
- Provides structured fields (UI, UPDATED_FIELD) for tracking specific changes.
- Available in multiple machine-readable formats (CSV, JSON, XML, RDF).
Limitations
- Row count is unknown, which may limit suitability assessment.
- Description metadata is limited; actual data quality requires manual inspection after download.
Provenance
- Source
- datadiscovery.nlm.nih.gov
- Time Range
- 2023-2026
- Freshness
- Last updated 2026-02-10 20:41:26.