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CAS 7543-51-3

CAS 7543-51-3 matches 0 EU annex records across Annex II–VI of Regulation 1223/2009.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 7543-51-3

CAS 7543-51-3PubChem CID 19973792

Phosphoric acid, zinc salt (2:3), tetrahydrate

Hopeite is a mineral with formula of Zn2+3(PO4)2·4H2O or Zn3(PO4)2·4H2O. The IMA symbol is Hop. — RRUFF Project

IUPAC name: trizinc;diphosphate;tetrahydrate

Molecular formula: H8O12P2Zn3
Molecular weight: 458.1 g/mol
Exact mass: 455.73342 Da
Topological polar surface area: 177.0 Å²
Hydrogen-bond donors: 4
Hydrogen-bond acceptors: 12
Covalent units: 9
Defined stereocentres: 0

Also known as

RefChem:862782616-223-7Zinc phosphate tetrahydrateHopeiteZINCPHOSPHATETETRAHYDRATE54S8C1184ZUNII-54S8C1184ZHopeite (Zn3(PO4)2.4H2O)

3 more reported names

H8O12P2Zn3SPDJAIKMJHJYAV-UHFFFAOYSA-HZinc phosphate--water (3/2/4)

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External database identifiers

EPA DTXSID:DTXSID70226356

Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Records for CAS 7543-51-3

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How CAS 7543-51-3 is used on this site

CAS 7543-51-3 is the Chemical Abstracts Service identifier used to pin this page to a specific substance. In the current dataset, 0 EU annex records share this identifier, which helps you cross-check whether the same substance appears under one regulatory context or several.

Use this page when a supplier specification, SDS or raw-material dossier gives you CAS 7543-51-3 and you need to see every linked Annex II–VI record in one place. The entry cards above are the quickest route to concentration limits, warnings, annex placement and product-type conditions.