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

CAS 128932-51-4

CAS 128932-51-4 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 128932-51-4
CAS 128932-51-4PubChem CID 23678918

Sodium phenylacetylisoglutaminate

IUPAC name
sodium (4S)-5-amino-5-oxo-4-[(2-phenylacetyl)amino]pentanoate
Molecular formula
C13H15N2NaO4
Molecular weight
286.26 g/mol
Exact mass
286.09295125 Da
Topological polar surface area
112.0 Ų
Hydrogen-bond donors
2
Hydrogen-bond acceptors
4
Covalent units
2
Defined stereocentres
1

Also known as

I6UNUIAVSEUNII-I6UNUIAVSEPentanoic acid, 5-amino-5-oxo-4-((phenylacetyl)amino)-, monosodium salt, (4S)-RefChem:184072Sodium (S)-5-amino-5-oxo-4-(2-phenylacetamido)pentanoatephenylacetylisoglutaminate sodiumSodium(S)-5-amino-5-oxo-4-(2-phenylacetamido)pentanoate
Open full PubChem recordPubChem annotations3D structure image
External database identifiers

Evidence from additional scientific databases

NIH PubChem PUG-View
Exact identifier match23678918

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
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 128932-51-4

0 total
No records found for this CAS number.

How CAS 128932-51-4 is used on this site

CAS 128932-51-4 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 128932-51-4 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.