Chemical data catalog
Chemical data catalog
Verified chemical record | Supplier availability | RFQ
Primary identifiers
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53 synonyms indexed on this record. Molecular formula C4H2O4 (see identifiers).
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Record summary
Key identifiers
Molecular formula is a stored field on this chemical record. The formula hub aggregates other catalog rows that share this formula string—an indexed browse path, not a second canonical record for this entry.
Record status
Added Mar 30, 2026 · Updated Mar 30, 2026
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I am a supplierNaming index
Labels below are naming entries stored on this chemical record—they are not separate competing master records. Searchable variants may also have synonym landing URLs; name hub pages group catalog text matches for indexed name strings.
Display-oriented names (39)
No safety data available
Structured safety data is not available for this record yet.
Record scope
This URL is the chemical record page for but-2-ynedioic acid (CAS 142-45-0). The molecular formula field reads C4H2O4. 53 naming or synonym entries are indexed on this row.
Canonical identifiers on the record: English name · CAS (when present) · molecular formula (when present). Synonym landing and name hub URLs are browse helpers; they point at or group catalog data, not separate chemical records.
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Field status
The stored formula C4H2O4 carries verified status for this catalog row. It describes this record's indexed composition string, not every possible isomer or salt form unless separately modeled.
Indexed browse
Open the formula hub to see other chemical records that share this molecular formula string—catalog aggregation only, not a replacement for this detail page.
Catalog navigation
Rows below are drawn from the same chemical list API—related records for browse and cross-checking, not ranked recommendations.
No additional rows in this sample share this formula.
No extra rows in this sample share this primary name.
No synonym-overlap rows returned in this sample.