Amines & Amides Available — Bulk Only

N-Acetyl-L-Tyrosine (Acetyl Tyrosine)

CAS 537-55-3 · Formula C11H13NO4 · MW 223.22 g/mol

An acetylated amino-acid derivative supplied as a cosmetic tanning-preparation ingredient and specialty biochemical. It is used as a cosmetic ingredient in tanning preparations and is handled as a specialty amino-acid derivative for formulation use.

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HS Code
2922.50
At a Glance
Material Family
Amines & Amides
Record Type
Pure compound
Primary Role
Conditioning
Solubility
297 mg/mL
Functional Roles
ACETYL TYROSINE
SKIN CONDITIONINGTANNING
Industries Served
Applications & Use Cases
  • Cosmetic ingredient: Used in tanning/skin-care preparations (Tanning).
  • Amino-acid derivative: Acetylated L-tyrosine for specialty formulation.
  • Solubility-enhanced tyrosine: More water-soluble N-acetyl form of L-tyrosine for aqueous formulation.
Physical Properties
Melting Point
149-152
Boiling Point
530.00 to 533.00 °C. @ 760.00 mm Hg
Solubility
297 mg/mL
Safety & Handling
Full SDS available on request

A grade-specific Safety Data Sheet (SDS) — with the complete hazard classification, handling precautions, and transport information — is supplied with every shipment and available on request. Confirm all safety and regulatory details against the SDS for your specific grade.

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HS / Tariff Classification
Harmonized System (HS) Code — 6-digit international heading
2922 . 50
Chapter 29
Organic chemicals
Heading 29.22
Internationally harmonized (WCO HS)
Subheading 2922.50
6-digit international code — national tariff line adds further digits
Chemical Identity
CAS Number
537-55-3
Molecular Formula
C11H13NO4
Molecular Weight
223.22 g/mol
IUPAC Name
(2S)-2-acetamido-3-(4-hydroxyphenyl)propanoic acid
INCI Name
ACETYL TYROSINE
PubChem CID
InChI Key
CAHKINHBCWCHCF-JTQLQIEISA-N
Synonyms & Trade Names
N-Acetyl-L-tyrosine N-Acetyltyrosine Acetyl tyrosine L-Tyrosine, N-acetyl- L-Tyrosine, acetyl- N-Acetyltyrosine (VAN) L-N-acetyl-Tyrosine TANOGEN HB TYR-EXCEL ACETYL L-TYROSINE Tyrosine, N-acetyl-, L- L-TYROSINE, N-ACETYL N-ACETYL-L-TYROSINE [USP-RS] N-ACETYLTYROSINE [EP MONOGRAPH] (2S)-2-(acetylamino)-3-(4-hydroxyphenyl)propanoic acid
Full Description

N-Acetyl-L-tyrosine (CAS 537-55-3) is the N-acetyl derivative of the amino acid L-tyrosine. It is used as a cosmetic ingredient in tanning preparations and is handled as a specialty amino-acid derivative for formulation use.

Frequently Asked Questions

What is acetyl tyrosine used for?

N-Acetyl-L-tyrosine (CAS 537-55-3) is the N-acetyl derivative of the amino acid L-tyrosine, used as a cosmetic ingredient in tanning and skin-care preparations and handled as a specialty amino-acid derivative for formulation. RawSource supplies it for industrial and formulation use.

What is the difference between N-acetyl tyrosine and L-tyrosine?

N-acetyl tyrosine is L-tyrosine with an acetyl group on the amino nitrogen, giving the more water-soluble N-acetyl form (CAS 537-55-3, C11H13NO4) preferred for aqueous formulation. Parent L-tyrosine is the underivatized amino acid. Specify which identity you require when ordering.

Is acetyl tyrosine water soluble?

The N-acetyl form is more water-soluble than parent L-tyrosine, which is why it is used to deliver tyrosine functionality in aqueous formulations. Refer to the technical data sheet for solubility parameters for the supplied grade.

What HS code applies to acetyl tyrosine?

Acetyl tyrosine is classified under HS 2922.50 — amino-alcohol-phenols, amino-acid-phenols, and other amino-compounds with oxygen function. Confirm the destination tariff line and national suffix with your customs broker before import.

How is bulk acetyl tyrosine packaged and quoted?

RawSource supplies specialty amino-acid derivatives in fiber drums, sacks, or smaller packs depending on volume. Packaging, lead time, and pricing are quoted per order; submit volume and destination for a bulk quote, with SDS and CoA provided on shipment.

Disclaimer. Information on this page — including properties, identifiers, hazard, transport (DOT/UN) and tariff (HS) classifications, and applications — is provided for general reference and is compiled from authoritative public sources (e.g. PubChem/ECHA, 49 CFR 172.101, the Harmonized Tariff Schedule). Values are typical and are not a guaranteed specification; the Certificate of Analysis (CoA) for the lot purchased governs. Products are sold for industrial and professional use only. Nothing here is a medical, health, or efficacy claim or advice. Always consult the current Safety Data Sheet (SDS) before handling, storage, transport or disposal, and confirm regulatory status, classification and suitability for your application and jurisdiction. Hazard, transport and tariff classifications must be verified for your specific shipment. RawSource makes no warranty, express or implied, and assumes no liability for use of this information. Trademarks. Third-party trademarks and brand names are the property of their respective owners; any reference is nominative — used only to identify a comparable product — and does not imply affiliation with, sponsorship by, or endorsement by the trademark owner.