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CAS 7727-21-1

CAS 7727-21-1 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 7727-21-1
CAS 7727-21-1PubChem CID 24412

Potassium Persulfate

Potassium persulfate appears as a white crystalline solid. Specific gravity 2.477. Decomposes below 100 °C. — CAMEO Chemicals

IUPAC name
dipotassium;sulfonatooxy sulfate
Molecular formula
K2O8S2
Molecular weight
270.33 g/mol
Exact mass
269.8308723 Da
Topological polar surface area
150.0 Ų
Hydrogen-bond donors
0
Hydrogen-bond acceptors
8
Covalent units
3
Defined stereocentres
0

Also known as

AnthionPotassium peroxydisulfatePotassium peroxodisulfatePotassium peroxydisulphateDipotassium persulfateDipotassium peroxydisulfatepotassium persulphatePeroxydisulfuric acid, dipotassium salt
16 more reported names
6B86K0MCZCPotassium peroxydisulfate (K2(S2O8))Peroxydisulfuric acid (((HO)S(O)2)2O2), dipotassium saltNSC-326763RefChem:175575K2S2O8231-781-8POTASSIUM PEROXYDISULFATE (K2S2O3)Caswell No. 700Dipotassium peroxodisulphateHSDB 2638UNII-6B86K0MCZCEINECS 231-781-8UN1492EPA Pesticide Chemical Code 063602Peroxydisulfuric acid (((HO)S(O)2)2O2) , dipotassium salt
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External database identifiers

Retrieved from NIH PubChem on 2026-09-02 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Records for CAS 7727-21-1

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How CAS 7727-21-1 is used on this site

CAS 7727-21-1 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 7727-21-1 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.