Why does CAS 7722-84-1 appear in more than one EU cosmetic annex?

A substance identified by CAS 7722-84-1 may appear in multiple EU cosmetic regulation annexes when it is subject to different conditions in different contexts — for example, restricted under Annex III with specific conditions, while also appearing in Annex IV as an approved colorant under separate entry conditions. Each entry must be reviewed individually.

How do I check if my formula contains a substance with CAS 7722-84-1?

Use the INCI Checker on CosIng Checker with INCI names, CAS numbers or EC numbers. Paste CAS 7722-84-1 to screen it directly, then review every linked annex record and supplier document.

CAS 1 record

CAS 7722-84-1

Q: How do I use CAS 7722-84-1 for compliance screening?

Cross-reference CAS 7722-84-1 against your raw material specification sheets and CoA documents. When it appears in Annex II, verify absence. When it appears in Annex III, verify that concentration limits and product type conditions are met. All annex entries sharing this CAS number are listed on this page.

CAS 7722-84-1 matches 1 EU annex record across Annex II–VI of Regulation 1223/2009.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 7722-84-1

CAS 7722-84-1PubChem CID 784

Hydrogen Peroxide

Peroxides is compounds of structure ROOR'. It has a role as an oxidising agent. It contains a peroxy group. — ChEBI

IUPAC name: hydrogen peroxide

Molecular formula: H2O2
Molecular weight: 34.015 g/mol
Exact mass: 34.005479302 Da
XLogP3: -0.9
Topological polar surface area: 40.5 Å²
Hydrogen-bond donors: 2
Hydrogen-bond acceptors: 2
Covalent units: 1
Defined stereocentres: 0

Also known as

oxydolperhydrolSuperoxolInteroxHydrogen dioxideInhibinePeroxaanAlbone

16 more reported names

HioxylKastoneH2O2Albone 35Albone DSDihydrogen dioxideT-StuffElawoxLenseptPeroneAlbone 35CGAlbone 50Albone 50CGAlbone 70Albone 70CGPerone 50

Open full PubChem record PubChem annotations 3D structure image

External database identifiers

ChEBI:CHEBI:16240
ChEBI:CHEBI:25940
ChEMBL:CHEMBL71595
EPA DTXSID:DTXSID2020715
PubMed:40965455
PubMed:40706909
PubMed:40522286
PubMed:40436237
PubMed:40384022
PubMed:40378909
PubMed:40139512
PubMed:40086586
PubMed:39866090
PubMed:39743035
PubMed:39709020
PubMed:39667565

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 7722-84-1

1 total

Annex

III

Entry

HYDROGEN PEROXIDE

Hydrogen peroxide and other compounds or mixtures that release hydrogen peroxide, including carbamide peroxide and zinc peroxide, with the exception of the following substances in Annex II: No 1397, 1398, 1399

(a) (f) Wear suitable gloves (a) (b) (c) (e) Contains hydrogen peroxide Avoid contact with eyes Rinse immediately if product comes into contact with them. (e) Concentration of H2O2 present or released indicated in…

231-765-0

Max concentration

How CAS 7722-84-1 is used on this site

CAS 7722-84-1 is the Chemical Abstracts Service identifier used to pin this page to a specific substance. In the current dataset, 1 EU annex record shares 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 7722-84-1 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.

Frequently asked questions

A substance identified by CAS 7722-84-1 may appear in multiple EU cosmetic regulation annexes when it is subject to different conditions in different contexts. For example, a substance might be restricted under Annex III with specific conditions, and the same CAS might also appear in Annex IV as an approved colorant under separate entry conditions. Each entry must be reviewed individually.

Cross-reference the CAS number against your raw material specification sheets and CoA documents. When a CAS appears in Annex II, verify absence. When it appears in Annex III, verify that concentration limits and product type conditions are met in your formulation. All annex entries sharing this CAS number are listed above.

A CAS number is assigned by the Chemical Abstracts Service (USA) and is globally recognised. An EC number is a European Commission identifier from inventories such as EINECS, ELINCS or the NLP list. Both identifiers may appear in EU cosmetic annex entries. Some substances have both, some have only one, and some older entries may have neither.

The INCI Checker accepts ingredient names, CAS numbers and EC numbers. Check this CAS number directly, then verify the result against supplier specification sheets and every linked annex condition.

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