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CAS 621-23-8

CAS 621-23-8 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 621-23-8
CAS 621-23-8PubChem CID 69301

1,3,5-Trimethoxybenzene

1,3,5-trimethoxybenzene is a methoxybenzene carrying methoxy groups at positions 1, 3 and 5. It has been found to be a biomarker of flavonoid consumption in humans. It has a role as a biomarker and a human xenobiotic metabolite. — ChEBI

IUPAC name
1,3,5-trimethoxybenzene
Molecular formula
C9H12O3
Molecular weight
168.19 g/mol
Exact mass
168.078644241 Da
XLogP3
2.0
Topological polar surface area
27.7 Ų
Hydrogen-bond donors
0
Hydrogen-bond acceptors
3
Covalent units
1
Defined stereocentres
0

Also known as

Phloroglucinol trimethyl ethersym-TrimethoxybenzeneBenzene, 1,3,5-trimethoxy-1,3,5-Trimethyoxybenzene00VJI3VG3DNSC-90060CHEBI:31038RefChem:412646
16 more reported names
210-673-4Phloroglucinol Impurity 271,3,5-Trimethoxybenzene (JAN)1,3,5-TRIMETHOXYBENZENE [JAN]CAS-621-23-8O,O,O-1,3,5-TrimethylresorcinolEINECS 210-673-4NSC 90060UNII-00VJI3VG3D1,3,5-Trimethoxy benzeneBRN 13079931,5-TrimethoxybenzeneSpectrum_0014041,5-Trimethyoxybenzene1,3,5-Methoxybenzene1,3,5-trimethoxybenzol
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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 621-23-8

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How CAS 621-23-8 is used on this site

CAS 621-23-8 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 621-23-8 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.