Skip to main content
CosIng Checker
CosIng Checker
EU cosmetic ingredients, restrictions and safety
Login
CAS 0 records

CAS 83-34-1

CAS 83-34-1 matches 0 EU annex records across Annex II–VI of Regulation 1223/2009.

Check this CAS numberBrowse annexes

Chemical identity and properties

PubChem 2D chemical structure for CAS 83-34-1
CAS 83-34-1PubChem CID 6736

Skatole

Skatole is a methylindole carrying a methyl substituent at position 3. It is produced during the anoxic metabolism of L-tryptophan in the mammalian digestive tract. It has a role as a mammalian metabolite and a human metabolite. — ChEBI

IUPAC name
3-methyl-1H-indole
Molecular formula
C9H9N
Molecular weight
131.17 g/mol
Exact mass
131.073499291 Da
XLogP3
2.6
Topological polar surface area
15.8 Ų
Hydrogen-bond donors
1
Hydrogen-bond acceptors
0
Covalent units
1
Defined stereocentres
0

Also known as

3-METHYLINDOLEScatole1H-Indole, 3-methyl-SkatolIndole, 3-methyl-beta-MethylindoleFEMA No. 30193-methyl-indole
16 more reported names
SKATOLUM9W945B5H7RNSC-122024CHEBI:91713 MethylindoleRefChem:58525201-471-73-MI3-methyl indole3-Methyl-4,5-benzopyrrole.beta.-MethylindoleNSC 122024Skatole, >=98%CAS-83-34-1CCRIS 8961HSDB 3511
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 83-34-1

0 total
No records found for this CAS number.

How CAS 83-34-1 is used on this site

CAS 83-34-1 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 83-34-1 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.