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CAS 473-98-3

CAS 473-98-3 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 473-98-3
CAS 473-98-3PubChem CID 72326

Betulin

Betulin is a pentacyclic triterpenoid that is lupane having a double bond at position 20(29) as well as 3beta-hydroxy and 28-hydroxymethyl substituents. It has a role as an antiviral agent, a metabolite, an analgesic, an antineoplastic agent and an anti-inflammatory agent. It is a diol and a pentacyclic triterpenoid. It derives from a hydride of a lupane. — ChEBI

IUPAC name
(1R,3aS,5aR,5bR,7aR,9S,11aR,11bR,13aR,13bR)-3a-(hydroxymethyl)-5a,5b,8,8,11a-pentamethyl-1-prop-1-en-2-yl-1,2,3,4,5,6,7,7a,9,10,11,11b,12,13,13a,13b-hexadecahydrocyclopenta[a]chrysen-9-ol
Molecular formula
C30H50O2
Molecular weight
442.7 g/mol
Exact mass
442.381080833 Da
XLogP3
8.3
Topological polar surface area
40.5 Ų
Hydrogen-bond donors
2
Hydrogen-bond acceptors
2
Covalent units
1
Defined stereocentres
10

Also known as

BetulinolTrocholBetulineBetulolBetulinic alcohol(+)-betulinLup-20(30)-ene-3beta,28-diolCP BETULIN
16 more reported names
NSC-46446W70HN7X7OORISTRACT BTLLup-20(29)-ene-3,28-diol, (3beta)-lup-20(29)-ene-3 beta,28-diolCHEBI:3086RefChem:568020lup-20(29)-ene-3,28-diol, 3,28-diacetate, (3 beta)-207-475-5Lup-20(29)-ene-3b,28-diolNSC 4644Betulinol (obsol.)(1R,3aS,5aR,5bR,7aR,9S,11aR,11bR,13aR,13bR)-3a-(Hydroxymethyl)-5a,5b,8,8,11a-pentamethyl-1-(prop-1-en-2-yl)icosahydro-1H-cyclopenta[a]chrysen-9-olAI3-62999ACon1_000091Lup-20(30)-ene-3.beta.,28-diol
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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 473-98-3

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How CAS 473-98-3 is used on this site

CAS 473-98-3 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 473-98-3 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.