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CAS 9000-38-8

CAS 9000-38-8 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 9000-38-8
CAS 9000-38-8PubChem CID 5899068

Kava Kava

Kava kava is an herbal derived from roots of the plant Piper methysticum, which has been used for centuries as a recreational and ceremonial drink in Oceania and more recently in concentrated forms in herbal medications to treat anxiety and insomnia. Products labeled as kava have been linked to the development of clinically apparent acute liver injury which can be severe and even fatal. — LiverTox

IUPAC name
2-[(E)-2-(1,3-benzodioxol-5-yl)ethenyl]-4-methoxy-2,3-dihydropyran-6-one
Molecular formula
C15H14O5
Molecular weight
274.27 g/mol
Exact mass
274.08412354 Da
XLogP3
2.4
Topological polar surface area
54.0 Ų
Hydrogen-bond donors
0
Hydrogen-bond acceptors
5
Covalent units
1
Defined stereocentres
0

Also known as

YangonaSakauTongaKavaKava2-((E)-2-(1,3-benzodioxol-5-yl)ethenyl)-4-methoxy-2,3-dihydropyran-6-oneIntoxicating pepperRefChem:201366CCRIS 9367
16 more reported names
HSDB 8145DL-MethysticinC15H14O5(E)-6-(2-(benzo[d][1,3]dioxol-5-yl)vinyl)-4-methoxy-5,6-dihydro-2H-pyran-2-one2H-Pyran-2-one,6-[(1E)-2-(1,3-benzodioxol-5-yl)ethenyl]-5,6-dihydro-4-methoxy-, (6R)-DL-Methysticin;()-MethysticiHY-N0922NSC-23877TN2347TQ0276CS-4246EBC-617425AS-795052-[(E)-2-(1,3-benzodioxol-5-yl)vinyl]-4-methoxy-2,3-dihydropyran-6-one6-[2-(1,3-dioxaindan-5-yl)ethenyl]-4-methoxy-5,6-dihydro-2H-pyran-2-one6-[(E)-2-(1,3-benzodioxol-5-yl)ethenyl]-4-methoxy-5,6-dihydro-2H-pyran-2-one
Open full PubChem recordPubChem annotations3D structure image

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 9000-38-8

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How CAS 9000-38-8 is used on this site

CAS 9000-38-8 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 9000-38-8 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.