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CAS 20283-92-5

CAS 20283-92-5 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 20283-92-5
CAS 20283-92-5PubChem CID 5281792

Rosmarinic Acid

(R)-rosmarinic acid is a stereoisomer of rosmarinic acid having (R)-configuration. It has a role as a geroprotector and a plant metabolite. It is a conjugate acid of a (R)-rosmarinate. It is an enantiomer of a (S)-rosmarinic acid. — ChEBI

IUPAC name
(2R)-3-(3,4-dihydroxyphenyl)-2-[(E)-3-(3,4-dihydroxyphenyl)prop-2-enoyl]oxypropanoic acid
Molecular formula
C18H16O8
Molecular weight
360.3 g/mol
Exact mass
360.08451746 Da
XLogP3
2.4
Topological polar surface area
145.0 Ų
Hydrogen-bond donors
5
Hydrogen-bond acceptors
8
Covalent units
1
Defined stereocentres
1

Also known as

Rosemary acidLabiatic acidtrans-Rosmarinic acidMQE6XG29YIORISTRACT ROA(2r)-3-(3,4-Dihydroxyphenyl)-2-{[(2e)-3-(3,4-Dihydroxyphenyl)prop-2-Enoyl]oxy}propanoic AcidRM-21ANPLC-0542
16 more reported names
R-(+)-2-(3,4-Dihydroxycinnamoyloxy)-3-(3,4-dihydroxyphenyl)propionic acidCINNAMIC ACID, 3,4-DIHYDROXY-, 2-ESTER with 3-(3,4-DIHYDROXYPHENYL)LACTIC ACIDCHEBI:17226Acid, RosemaryAcid, Rosmarinic(2R)-3-(3,4-dihydroxyphenyl)-2-(((2E)-3-(3,4-dihydroxyphenyl)prop-2-enoyl)oxy)propanoic acid(2R)-3-(3,4-dihydroxyphenyl)-2-((E)-3-(3,4-dihydroxyphenyl)prop-2-enoyl)oxypropanoic acidRefChem:6204Labiatenic acidRosmarinicacid(R)-rosmarinic acidRosmarinic acid racemateRosmarimic acidRosmarinic-acid(R,E)-3-(3,4-dihydroxyphenyl)-2-((3-(3,4-dihydroxyphenyl)acryloyl)oxy)propanoic acidRosemarinic Acid
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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 20283-92-5

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How CAS 20283-92-5 is used on this site

CAS 20283-92-5 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 20283-92-5 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.