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CAS 77-71-4

CAS 77-71-4 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 77-71-4
CAS 77-71-4PubChem CID 6491

Dimethylhydantoin

5,5-Dimethylhydantoin is an imidazolidine-2,4-dione. — ChEBI

IUPAC name
5,5-dimethylimidazolidine-2,4-dione
Molecular formula
C5H8N2O2
Molecular weight
128.13 g/mol
Exact mass
128.058577502 Da
XLogP3
-0.3
Topological polar surface area
58.2 Ų
Hydrogen-bond donors
2
Hydrogen-bond acceptors
2
Covalent units
1
Defined stereocentres
0

Also known as

5,5-DIMETHYLHYDANTOIN2,4-Imidazolidinedione, 5,5-dimethyl-Dantoin DMH5,5-Dimethyl-2,4-imidazolidinedioneDantoin 7365,5-Dimethyl hydantoinHydantoin, 5,5-dimethyl-NSC-8652
16 more reported names
RefChem:527790201-051-3DM HydantoinNSC 8652EINECS 201-051-34,4-dimethyl-2,5-dioxoimidazolidine5,5-Dimethyl-imidazolidin-2,4-dion5,5-dimethyl-imidazolidine-2,4-dioneCAS-77-71-4HSDB 5216BRN 0002827UNII-34032MQ9ROAI3-611275,5-dimethyl-hydantoinEC 201-051-35-24-05-00348 (Beilstein Handbook Reference)
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External database identifiers

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 77-71-4

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How CAS 77-71-4 is used on this site

CAS 77-71-4 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 77-71-4 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.