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CAS 646-06-0

CAS 646-06-0 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 646-06-0
CAS 646-06-0PubChem CID 12586

1,3-Dioxolane

Dioxolane appears as a clear colorless liquid. Slightly denser than water. Vapors heavier than air. — CAMEO Chemicals

IUPAC name
1,3-dioxolane
Molecular formula
C3H6O2
Molecular weight
74.08 g/mol
Exact mass
74.036779430 Da
XLogP3
-0.4
Topological polar surface area
18.5 Ų
Hydrogen-bond donors
0
Hydrogen-bond acceptors
2
Covalent units
1
Defined stereocentres
0

Also known as

DIOXOLANEGlycolformal1,3-DioxacyclopentaneFormal glycol1,3-DioxolanEthylene glycol formalGlycol formalGlycol methylene ether
16 more reported names
1,3-Dioxole, dihydro-5-Crown-2Y57RBG19JLELCOTAL DXCHEBI:87597RefChem:72794CHEBI:39430211-463-51,3-Dioxolane, StabilizedEthylene glycol methylene ether1,3-Dioxolane (stabilized with BHT)1,3-DioxlaneDioxolan [Czech]1,3-dioxalaneCCRIS 4912Dioxolane, 1,3-
Open full PubChem recordPubChem annotations3D structure image
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 646-06-0

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How CAS 646-06-0 is used on this site

CAS 646-06-0 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 646-06-0 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.