Why does CAS 868-77-9 appear in more than one EU cosmetic annex?

A substance identified by CAS 868-77-9 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 868-77-9?

Use the INCI Checker on CosIng Checker with INCI names, CAS numbers or EC numbers. Paste CAS 868-77-9 to screen it directly, then review every linked annex record and supplier document.

CAS 1 record

CAS 868-77-9

Q: How do I use CAS 868-77-9 for compliance screening?

Cross-reference CAS 868-77-9 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 868-77-9 matches 1 EU annex record across Annex II–VI of Regulation 1223/2009.

Check this CAS number Browse annexes

Chemical identity and properties

PubChem 2D chemical structure for CAS 868-77-9

CAS 868-77-9PubChem CID 13360

2-Hydroxyethyl Methacrylate

2-hydroxyethyl methacrylate is an enoate ester that is the monomethacryloyl derivative of ethylene glycol. It has a role as an allergen and a polymerisation monomer. It is functionally related to a methacrylic acid and an ethylene glycol. — ChEBI

IUPAC name: 2-hydroxyethyl 2-methylprop-2-enoate

Molecular formula: C6H10O3
Molecular weight: 130.14 g/mol
Exact mass: 130.062994177 Da
XLogP3: 0.5
Topological polar surface area: 46.5 Å²
Hydrogen-bond donors: 1
Hydrogen-bond acceptors: 3
Covalent units: 1
Defined stereocentres: 0

Also known as

Glycol methacrylateHydroxyethyl methacrylateEthylene glycol methacrylateGlycol monomethacrylate2-(Methacryloyloxy)ethanol2-HydroxyethylmethacrylateMhoromerMonomer MG-1

16 more reported names

Ethylene glycol monomethacrylate2-Propenoic acid, 2-methyl-, 2-hydroxyethyl esterbeta-Hydroxyethyl methacrylateEthylene glycol, monomethacrylateMonomethacrylic ether of ethylene glycol6E1I4IV47VCHEBI:34288NSC-241802-HEMARefChem:6745212-782-2927-388-2HEMAMethacrylic acid, 2-hydroxyethyl esterNSC 24180(hydroxyethyl)methacrylate

Open full PubChem record PubChem annotations 3D structure image

External database identifiers

ChEBI:CHEBI:34288
ChEBI:CHEBI:53709
ChEMBL:CHEMBL1730239
EPA DTXSID:DTXSID7022128
PubMed:37778984
PubMed:33248029
PubMed:30517439
PubMed:30497689
PubMed:28188892
PubMed:28184909
PubMed:23182953
PubMed:23084897
PubMed:23018084
PubMed:22963034
PubMed:22950871
PubMed:22930486

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 868-77-9

1 total

Annex

III

Entry

313

HEMA

2-Hydroxyethyl Methacrylate

For professional use only. Can cause an allergic reaction.

212-782-2

How CAS 868-77-9 is used on this site

CAS 868-77-9 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 868-77-9 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 868-77-9 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.

Check this CAS number

Tools & next steps

Check your formula

Scan a full INCI list, then use CAS 868-77-9 to cross-check any supplier documents behind the matched substances.

INCI Checker

Browse annexes

Browse all EU cosmetic regulation annexes by category.

All annexes

Search by name

Search for INCI names, aliases or related identifiers that sit alongside CAS 868-77-9 in your documentation.

Chemical identity and properties

2-Hydroxyethyl Methacrylate

Records for CAS 868-77-9

HEMA

How CAS 868-77-9 is used on this site

Frequently asked questions

Why does CAS 868-77-9 appear in more than one annex?

How do I use CAS 868-77-9 for compliance screening?

What is the difference between a CAS number and an EC number?

How do I check if my formula contains a substance with this CAS number?

Tools & next steps

Check your formula

Browse annexes

Search by name