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CAS 261-31-4

CAS 261-31-4 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 261-31-4
CAS 261-31-4PubChem CID 67495

Thioxanthene

9H-thioxanthene is a thioxanthene that consists of a xanthene skeleton in which the oxygen atom is replaced by a sulfur atom. — ChEBI

IUPAC name
9H-thioxanthene
Molecular formula
C13H10S
Molecular weight
198.29 g/mol
Exact mass
198.05032149 Da
XLogP3
3.9
Topological polar surface area
25.3 Ų
Hydrogen-bond donors
0
Hydrogen-bond acceptors
1
Covalent units
1
Defined stereocentres
0

Also known as

ThioxanthineThiaxantheneThiaxanthenUNII-1J3P67894AEINECS 205-972-1THIOXANTHENE [MI]1J3P67894ACHEBI:51055
16 more reported names
RefChem:189677THIOXANTHINE [INCI]CHEBI:51056205-972-1InChI=1/C13H10S/c1-3-7-12-10(5-1)9-11-6-2-4-8-13(11)14-12/h1-8H,9HPQJUJGAVDBINPI-UHFFFAOYSA-NThioxanthenDibenzothiapyran10H-Dibenzo(b,e)thiin10H-dibenzo[b,e]thiinMetixene EP Impurity A9H-thioxanthenThioxanthene CRS10H-dibenzo[b,e]thiopyranSCHEMBL8717Metixene Hydrochloride EP Impurity A
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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 261-31-4

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How CAS 261-31-4 is used on this site

CAS 261-31-4 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 261-31-4 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.