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

CAS 537-55-3

CAS 537-55-3 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 537-55-3
CAS 537-55-3PubChem CID 68310

N-Acetyl-L-tyrosine

N-acetyl-L-tyrosine is an N-acetyltyrosine in which the chiral centre has L configuration. It has a role as a biomarker, an EC 2.1.1.4 (acetylserotonin O-methyltransferase) inhibitor and a human urinary metabolite. It is a N-acetyltyrosine and a N-acyl-L-tyrosine. It is a conjugate acid of a N-acetyl-L-tyrosinate. — ChEBI

IUPAC name
(2S)-2-acetamido-3-(4-hydroxyphenyl)propanoic acid
Molecular formula
C11H13NO4
Molecular weight
223.22 g/mol
Exact mass
223.08445790 Da
XLogP3
-0.2
Topological polar surface area
86.6 Ų
Hydrogen-bond donors
3
Hydrogen-bond acceptors
4
Covalent units
1
Defined stereocentres
1

Also known as

N-AcetyltyrosineAcetyl tyrosineL-Tyrosine, N-acetyl-L-Tyrosine, acetyl-N-Acetyltyrosine (VAN)UNII-DA8G610ZO5L-N-acetyl-TyrosineTANOGEN HB
16 more reported names
TYR-EXCELACETYL L-TYROSINEEINECS 208-671-3NSC 10853Tyrosine, N-acetyl-, L-L-TYROSINE, N-ACETYLN-ACETYL-L-TYROSINE [USP-RS]N-ACETYLTYROSINE [EP MONOGRAPH](2S)-2-(acetylamino)-3-(4-hydroxyphenyl)propanoic acid(2S)-2-Acetylamino-3-(4-hydroxyphenyl)propanoateNSC-10853N-ACETYL-L-TYROSINE (USP-RS)N-ACETYLTYROSINE (EP MONOGRAPH)CHEBI:685612-(acetylamino)-3-(4-hydroxyphenyl)propanoic acidRefChem:162624
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 537-55-3

0 total
No records found for this CAS number.

How CAS 537-55-3 is used on this site

CAS 537-55-3 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 537-55-3 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.