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CAS 105883-41-8

CAS 105883-41-8 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 105883-41-8
CAS 105883-41-8PubChem CID 72941639

Methylsilanol PCA

IUPAC name
[dihydroxy(methyl)silyl] (2S)-5-oxopyrrolidine-2-carboxylate
Molecular formula
C6H11NO5Si
Molecular weight
205.24 g/mol
Exact mass
205.04064899 Da
Topological polar surface area
95.9 Ų
Hydrogen-bond donors
3
Hydrogen-bond acceptors
5
Covalent units
1
Defined stereocentres
1

Also known as

Methylsilanol PCA [INCI]L-Proline, 5-oxo-, dihydroxymethylsilyl esterUNII-837430510VDIHYDROXYMETHYLSILYL L-PYROGLUTAMATERefChem:158314VOPVRRNGCBEXNL-BYPYZUCNSA-NDihydroxy(methyl)silyl 5-oxo-L-prolinate
Open full PubChem recordPubChem annotations3D structure image
External database identifiers

Evidence from additional scientific databases

NIH PubChem PUG-View
Exact identifier match72941639

Attributed physical-property, hazard, environmental and use annotations.

Mapped by: Existing checksum-valid CAS to unique PubChem CID match. Retrieved: 2026-08-31. Open source record

Scientific classifications and hazard annotations provide context and do not replace the market-specific regulatory decision shown above.

Additional source coverage and match status
SourceResultChecked
EMBL-EBI ChEBINo exact record2026-08-31
NIH PubChem PUG-ViewExact match2026-08-31

A recorded no-match is useful evidence that the source was checked; it is not a claim that the substance does not exist elsewhere.

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 105883-41-8

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No records found for this CAS number.

How CAS 105883-41-8 is used on this site

CAS 105883-41-8 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 105883-41-8 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.