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Hexacalcium cyclohexane-1,2,3,4,5,6-hexayl hexakis(phosphate)

CAS 7776-28-5

Molecular structure of 7776-28-5
6 Ca²⁺
US productionNot reported
Import value, 2024$123M
Top sourceChina 66%

This chemical is not on EPA’s Toxic Substances Control Act inventory, the list behind EPA’s production survey.

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 291990 · basket

These shares come from HS customs code 291990, which covers 77 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
CN 66%ChinaDE 18%GermanyJP 5%JapanIN 3%IndiaCH 3%Switzerland

Why It Matters

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

Chemical Identity

CAS7776-28-5
PubChem CIDNot recorded
DTXSIDDTXSID40998952
FormulaC6H6Ca6O24P6
Mol. Weight888.401 g/mol
SMILES[Ca++].[Ca++].[Ca++].[Ca++].[Ca++].[Ca++].[O-]P([O-])(=O)OC1C(OP([O-])([O-])=O)C(OP([O-])([O-])=O)C(OP([O-])([O-])=O)C(OP([O-])([O-])=O)C1OP([O-])([O-])=O

Data Sources

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Brief citations

Hexacalcium cyclohexane-1,2,3,4,5,6-hexayl hexakis(phosphate) (CAS 7776-28-5) https://chemicalindependence.com/chemical/7776-28-5/ EPA CompTox (DSSTox): 7776-28-5. Retrieved 2026-04-29. https://comptox.epa.gov/dashboard/chemical/details/DTXSID40998952 US Census international trade: HS 291990 for CAS 7776-28-5. Reporting year: 2024. https://usatrade.census.gov/