Cat. No JK208004_5_G
J&K Chemical

Product Information

Product Name
N-Benzoyl-L-tyrosine ethyl ester, 99%
Brand Name
J&K
Product Number
208004
CAS
3483-82-7
Molecular Formula
C18H19NO4
Molecular Weight
313.35
SDS Document
Certificate of Analysis (COA)​
COA not found

General Information

Synonyms
Benzoyl-L-tyrosine ethyl ester
PubChem CID
77033
IUPAC Name
ethyl (2S)-2-benzamido-3-(4-hydroxyphenyl)propanoate
InChI Key
SRLROPAFMUDDRC-INIZCTEOSA-N
SMILES
CCOC(=O)C@H(CC1=CC=C(C=C1)O)NC(=O)C2=CC=CC=C2

Properties

Melting Point
118-121
Optical Activity
-30° to -25° (C=1, EtOH)

Safety Information

Storage Condition
Freezer -20℃

Application

Product Introduction

N-Benzoyl-L-tyrosine ethyl ester (BTEE) is a widely used chromogenic substrate for the detection of serine protease activity, particularly chymotrypsin. It is an esterified derivative of L-tyrosine, designed to mimic natural peptide substrates recognized by proteolytic enzymes.

Upon enzymatic hydrolysis, BTEE undergoes cleavage of the ester bond, resulting in a measurable change in absorbance, allowing quantitative monitoring of enzyme activity.

Due to its specificity and reliability, BTEE is commonly used in enzyme kinetics studies, protease activity assays, inhibitor screening, and biochemical research, especially in systems involving chymotrypsin-like enzymes.

Mechanism of Reaction

N-Benzoyl-L-tyrosine ethyl ester functions as a substrate for serine proteases.In enzymatic reactions:

  • It is hydrolyzed by chymotrypsin and related proteases
  • The ester bond is cleaved
  • Produces N-benzoyl-L-tyrosine and ethanol

This makes BTEE a classical substrate for studying protease catalysis and enzyme specificity.

Key Research Applications

1.Protease Activity Assays

BTEE is widely used for quantitative measurement of serine protease activity.Typical applications include:

  • Chymotrypsin activity assays
  • Proteolytic enzyme characterization
  • Enzyme activity monitoring

2.Enzyme Kinetics Studies

The compound is ideal for enzyme kinetics analysis.Applications include:

  • Determination of kinetic parameters (Km and Vmax)
  • Substrate specificity studies
  • Reaction mechanism investigation

3.Enzyme Inhibitor Screening

BTEE is commonly used in screening protease inhibitors.Applications include:

  • Drug discovery research
  • Protease inhibitor evaluation
  • Screening of bioactive compounds

4.Biochemical and Pharmaceutical Research

Widely applied in biochemistry and life science research.Applications include:

  • Protease-related pathway studies
  • Protein digestion research
  • Enzyme-based assay development

Recommended Experimental Conditions

Parameter Recommended Conditions
Detection Method UV spectrophotometric assay
Detection Wavelength ~256 nm
Buffer Systems Tris-HCl buffer, phosphate buffer
Temperature 25–37 °C
Assay Format Cuvette-based assays, microplate assays

Experimental parameters may require optimization depending on enzyme source.

Advantages in Enzyme Assays

  • High specificity for chymotrypsin-like proteases
  • Enables continuous kinetic monitoring
  • Simple and reproducible assay system
  • Suitable for inhibitor screening
  • Widely validated in enzymology research

Storage & Handling

Keep container tightly closed in a dry and well-ventilated place
Keep in a cool place

Research Areas

Researchers working in the following fields may benefit from this compound:

  • Enzymology and protease activity studies
  • Biochemistry and protein research
  • Pharmaceutical and drug discovery research
  • Enzyme kinetics and inhibition studies
  • Life science research involving proteolytic enzymes

FAQ

What is BTEE used for?
It is used as a substrate for measuring chymotrypsin and related protease activity.

 

How is enzyme activity detected?
By monitoring the increase in absorbance at ~256 nm during substrate hydrolysis.

 

Is BTEE suitable for inhibitor studies?
Yes, it is widely used in protease inhibitor screening and enzyme kinetics analysis.

References Data Source From Pubchem

A packed-bed immobilized enzyme microreactor with high-efficiency enzyme assay for rapid detection of nerve agent exposure

Publication Name: Microfluidics and Nanofluidics
Publication Date: 2026-02-27
DOI: 10.1007/s10404-026-02884-1

Replacement of fish oil with Tenebrio molitor larvae oil in diets for juvenile silver catfish (Rhamdia quelen)

Publication Name: Aquaculture International
Publication Date: 2025-09-13
DOI: 10.1007/s10499-025-02199-y

Dietary Supplementation of the Rainbow Trout, Oncorhynchus mykiss by Red Ginseng, Panax Ginseng' Powder: Enhancing Effects on Growth, Immunity and Disease Resistance

Publication Name: Veterinary Research Communications
Publication Date: 2025-09-05
DOI: 10.1007/s11259-025-10867-w

Growth parameters, water footprint, and digestive enzyme activity of pirarucu Arapaima gigas juveniles reared in a biofloc system

Publication Name: Aquaculture International
Publication Date: 2025-04-30
DOI: 10.1007/s10499-025-01974-1

N-Benzoyl-L-tyrosine ethyl ester, 99%

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