Carbonic acid, yttrium(3+) salt (3:2)

CAS 556-28-5

EPA’s 2023 records show zero U.S. production of this chemical.

US productionZero

Import volumeCBI

Confidential Business Information. The EPA withholds this volume because publishing it could reveal the reporting company's trade secrets.

Top sourceNo public record

At least one company claimed its 2023 production or import volume for this chemical as confidential, so EPA withholds it.

Why supply is unknown

Production is reported production, not a complete census of factories. Production reporting year: 2023.

Where It Comes From

EPA reports by year

2023: US production Zero · Imports Confidential
2019: US production Confidential · Imports Confidential

EPA-registered importers (1)

Companies that report making or importing this chemical to the EPA. Registration is US-centric and does not indicate import origin.

W. R. Grace & Co. - Conn.

Why It Matters

Sectors

Energy

Downstream UsesNot recorded

FDA Shortage Status

Whether any manufacturer currently reports this drug as in shortage on the FDA Drug Shortages database. "Active Shortage" means at least one presentation has status "current."

No FDA shortage records

Industrial Uses

•Catalyst in Petroleum Refineries (100%)Processing as a reactant

Vendor Pricing

$0.27/gA2B Chem LLC

CountryUnited States

Pack$270.00 / 1 kg

Purity98%

Vendors2 available

Prices reflect listed pack sizes. Small research packs run far above bulk rates.

1 more vendor

Vendor	Country	$/g	Pack	Purity
AA BLOCKS	United States	$0.28	1 kg	98%

Chemical Identity

CAS556-28-5

PubChem CID164665

DTXSIDDTXSID40890508

FormulaC3O9Y2

Mol. Weight357.84 g/mol

SMILESC(=O)([O-])[O-].C(=O)([O-])[O-].C(=O)([O-])[O-].[Y+3].[Y+3]

Data Sources

EPA CompTox (DSSTox) · DTXSID40890508Retrieved 2026-04-06
PubChem · compound 164665Retrieved 2026-04-06
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04

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Brief citations

Carbonic acid, yttrium(3+) salt (3:2) (CAS 556-28-5) https://chemicalindependence.com/chemical/556-28-5/ EPA CompTox (DSSTox): DTXSID40890508. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID40890508 PubChem: 164665. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/164665 EPA Chemical Data Reporting: 556-28-5. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 556-28-5. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting