Material data coverage

What counts

A field counts only when information and a source are recorded on the site. Unknown values, placeholders and unextracted content inside a linked PDF do not count. Missing or inapplicable fields stay in the denominator. Coverage measures recorded information, not scientific accuracy, safety or supplier suitability.

1. Chemical name · 1000/1000 records
2. CAS number · 906/1000 records
3. Synonyms · 417/1000 records
4. Molecular formula · 895/1000 records
5. Molecular weight · 895/1000 records
6. IUPAC name · 888/1000 records
7. PubChem CID · 893/1000 records
8. Identity sources · 1000/1000 records
9. Uses · 86/1000 records
10. Hazards · 417/1000 records
11. Appearance · 417/1000 records
12. Density · 5/1000 records
13. Melting point · 401/1000 records
14. Boiling point · 393/1000 records
15. Solubility · 388/1000 records
16. SDS/TDS · 98/1000 records

Density is distinguished from specific gravity. Trade names are not automatically counted as chemical synonyms. Generic research categories do not establish uses. A document-access portal or partial TDS photograph does not count as a complete SDS/TDS.

Grades, families and mixtures

Each grade keeps its own score. A grouped family card shows the range across its member records; fields are never pooled across grades to create a higher family score. Some molecular fields may not apply to a family, mixture or polymer grade.

Mixture and component CAS identifiers can be recorded separately when composition is documented. One component’s formula, molecular weight or properties are not assigned to the whole mixture.

What the score does not establish

Coverage is separate from human verification and EcoSafe assessment. Manufacturing origin, regulatory compliance, source freshness and application-specific test data require separate review. A low score may mean the information has not been extracted yet, rather than that it cannot be found.