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CAS 5336-08-3

CAS 5336-08-3 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 5336-08-3
CAS 5336-08-3PubChem CID 111064

Ribonolactone

D-ribono-1,4-lactone is a five-membered form of ribonolactone having D-configuration. It has a role as a metabolite. It is a butan-4-olide and a ribonolactone. It is functionally related to a D-ribonic acid. — ChEBI

IUPAC name
(3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-one
Molecular formula
C5H8O5
Molecular weight
148.11 g/mol
Exact mass
148.03717335 Da
XLogP3
-1.4
Topological polar surface area
87.0 Ų
Hydrogen-bond donors
3
Hydrogen-bond acceptors
5
Covalent units
1
Defined stereocentres
3

Also known as

D-Ribono-gamma-lactone64E63NC231Ribonic acid, gamma-lactone, D-NSC-1031RefChem:883599CHEBI:37434226-256-5D-Ribono-1,4-lactone
16 more reported names
D-RibonolactoneD(+)-Ribonic acid gamma-lactone3327-63-7Ribono-gamma-lactoneD-(+)-Ribono-1,4-lactoneD-Ribopentono-1,4-lactoneD-(+)-Ribonic acid gamma-lactone(3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)dihydrofuran-2(3H)-oneD-Ribonic acid-1,4-Lactonegamma-Lactone of ribonic acidC5H8O5ribono-1,4-lactoneNSC 1031Ribonic acid, .gamma.-lactone, D-(3R,4S,5R)-3,4-Dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-onedelta-Ribonolactone
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 5336-08-3

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How CAS 5336-08-3 is used on this site

CAS 5336-08-3 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 5336-08-3 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.