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Benzoic acid, 3,3'-[(3-carboxy-4-oxo-2,5-cyclohexadien-1-ylidene)methylene]bis[6-hydroxy-, calcium salt (2:3)

CAS 63451-31-0

Molecular structure of 63451-31-0
3 Ca²⁺
US productionNot reported
Import value, 2024$370M
Top sourceIndia 45%

This chemical is listed as active in US commerce, but no company reported it to EPA’s survey for 2019 or 2023. Sites may have made or imported less than the threshold amount, or none.

Why supply is unknown

Production is reported production, not a complete census of factories. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.

Where It Comes From

Customs basis: HS 291899 · basket

These shares come from HS customs code 291899, which covers 139 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
IN 45%IndiaCN 35%ChinaGB 7%United KingdomCO 3%ColombiaCH 3%Switzerland

Why It Matters

No EPA sector or FDA product records name a use for this chemical.

Chemical Identity

CAS63451-31-0
PubChem CIDNot recorded
DTXSIDDTXSID60889813
FormulaC44H22Ca3O18
Mol. Weight958.876 g/mol
SMILES[Ca++].[Ca++].[Ca++].OC1=CC=C(C=C1C([O-])=O)C(C1=CC=C(O)C(=C1)C([O-])=O)=C1C=CC(=O)C(=C1)C([O-])=O.OC1=CC=C(C=C1C([O-])=O)C(C1=CC=C(O)C(=C1)C([O-])=O)=C1C=CC(=O)C(=C1)C([O-])=O

Data Sources

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Brief citations

Benzoic acid, 3,3'-[(3-carboxy-4-oxo-2,5-cyclohexadien-1-ylidene)methylene]bis[6-hydroxy-, calcium salt (2:3) (CAS 63451-31-0) https://chemicalindependence.com/chemical/63451-31-0/ EPA TSCA Inventory: CAS 63451-31-0. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory US Census international trade: HS 291899 for CAS 63451-31-0. Reporting year: 2024. https://usatrade.census.gov/