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CAS 57-55-6

CAS 57-55-6 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 57-55-6
CAS 57-55-6PubChem CID 1030

Propylene Glycol

Propane-1,2-diol is the simplest member of the class of propane-1,2-diols, consisting of propane in which a hydrogen at position 1 and a hydrogen at position 2 are substituted by hydroxy groups. A colourless, viscous, hygroscopic, low-melting (59C) and high-boiling (188C) liquid with low toxicity, it is used as a solvent, emulsifying agent, and antifreeze. It has a role as a protic solvent, an allergen, a mouse metabolite and a human xenobiotic metabolite. It is a glycol and a member of propane-1,2-diols. — ChEBI

IUPAC name
propane-1,2-diol
Molecular formula
C3H8O2
Molecular weight
76.09 g/mol
Exact mass
76.052429494 Da
XLogP3
-0.9
Topological polar surface area
40.5 Ų
Hydrogen-bond donors
2
Hydrogen-bond acceptors
2
Covalent units
1
Defined stereocentres
0

Also known as

1,2-propanediol1,2-Propylene glycol1,2-dihydroxypropane2-HydroxypropanolIsopropylene glycolDowfrostSirleneMethylethyl glycol
16 more reported names
Methylethylene glycolMonopropylene glycolTrimethyl glycolPropylene Glycol USPSolar Winter BANSolargard Palpha-Propyleneglycoldl-Propylene glycolDL-1,2-PropanediolMethyl glycolUcar 35Sentry Propylene Glycol(RS)-1,2-PropanediolFEMA No. 2940(+-)-Propylene glycol1,2-Propylenglykol
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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 57-55-6

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How CAS 57-55-6 is used on this site

CAS 57-55-6 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 57-55-6 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.