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2-(1-Piperazinyl)-benzoic acid ethyl ester

CAS 180417-98-5 · Piperazine · 3 functional traits · cGMP compliant · Ships from USA in 2-3 days

Piperazine

2-(1-Piperazinyl)-benzoic acid ethyl ester

Carboxylic Acids PharmaceuticalCNS TherapeuticsMedicinal ChemistryDrug DeliveryPolymerFine Chemical
CAS Number 180417-98-5
Category Piperazine · Carboxylic Acid
Origin USA
Compliance cGMP

Questions? Contact our chemistry team:

chemistry@chem-contract.com | +1 (714) 732-8549
In stock — typically ships within 2-3 business days

About 2-(1-Piperazinyl)-benzoic acid ethyl ester

2-(1-Piperazinyl)-benzoic acid ethyl ester (CAS Number: 180417-98-5) is a piperazine-containing compound used extensively as a pharmacokinetic-enhancing motif featuring a Piperazine ring. ChemContract Research supplies this moderate-complexity compound in high purity from our Huntington Beach, California facility, ensuring consistent quality and reliable domestic delivery throughout the United States.

The two nitrogen atoms of piperazine provide both a basic amine (pKa ~9.8) for salt formation and a secondary amine (pKa ~5.3) for functionalization, giving medicinal chemists dual synthetic handles. Carboxylic acids are among the most synthetically versatile functional groups — they can be converted to amides, esters, acid chlorides, anhydrides, alcohols, and aldehydes in a single step. Ester hydrolysis by cellular esterases is the most commonly exploited prodrug activation mechanism — enabling drugs that cannot cross biological membranes as free acids.

Primary applications include solubility enhancer via piperazine salt formation in drug formulation and amide bond formation via edc/hobt or hatu coupling in peptide synthesis. This compound serves researchers and manufacturers across the pharmaceutical, cns therapeutics, medicinal chemistry sectors. Whether you require 2-(1-Piperazinyl)-benzoic acid ethyl ester for early-stage research, process development, or commercial-scale production, ChemContract Research offers flexible ordering from milligram to multi-kilogram quantities with custom synthesis options and full batch documentation including Certificates of Analysis (CoA) and Safety Data Sheets.

Ring Systems: Piperazine
Functional Groups: Carboxylic acid (–COOH)Ester (–COOR)

Piperazine Applications & Target Industries

How 2-(1-Piperazinyl)-benzoic acid ethyl ester is used across pharmaceutical and cns therapeutics sectors

01

Solubility enhancer via piperazine salt formation in drug formulation

02

Amide bond formation via EDC/HOBt or HATU coupling in peptide synthesis

03

Prodrug development to mask carboxylic acids and improve membrane permeability

04

Bioisosteric replacement for piperidine to improve metabolic profile

05

Salt formation with amines to improve drug crystallinity and stability

06

Protecting group for hydroxyl functionalities (acetate, benzoate)

Target Industries: PharmaceuticalCNS TherapeuticsMedicinal ChemistryDrug DeliveryPolymerFine Chemical

2-(1-Piperazinyl)-benzoic acid ethyl ester Specifications

Detailed specifications for this piperazine, including purity, molecular weight, and analytical data are available upon request. Every batch from ChemContract Research includes:

  • Certificate of Analysis (CoA) with purity verification
  • HPLC, NMR, and/or mass spectrometry characterization data
  • Material Safety Data Sheet (MSDS/SDS)
  • Batch-specific documentation and lot traceability
  • Custom analytical testing available on request
Request Full Specifications

Quick Reference

Compound Name 2-(1-Piperazinyl)-benzoic acid ethyl ester
Type Piperazine
Category Piperazine · Carboxylic Acid
Purity ≥95% (custom grades available)
Complexity Moderate (2 functional groups, 1 ring)
Compliance cGMP
Packaging mg to kg scale

Storage & Handling for Piperazines

Handling Guidelines

Handle with standard precautions. Some piperazine derivatives may be irritating. Use adequate ventilation. Acids may be corrosive or irritating. Handle with chemical-resistant gloves and eye protection. Use a fume hood for volatile acids. Some esters are volatile and flammable. Handle in a well-ventilated area. Keep away from ignition sources.

Storage Conditions

Store at room temperature in a tightly sealed container away from acids. Store at room temperature in a tightly sealed container. Protect from moisture and strong bases. Store at room temperature in a tightly sealed container away from heat and open flame.

Why Buy 2-(1-Piperazinyl)-benzoic acid ethyl ester From ChemContract?

Quality Assured

Every batch of 2-(1-Piperazinyl)-benzoic acid ethyl ester is produced under cGMP conditions with full CoA documentation, HPLC purity verification, and lot traceability.

Fast USA Shipping

Ship from our Huntington Beach, CA facility with 2-3 business day domestic delivery. No import delays, no customs fees, no tariff surprises.

Custom Synthesis

Need a specific grade, quantity, or derivative of 2-(1-Piperazinyl)-benzoic acid ethyl ester? Our team of PhD chemists can develop custom synthesis solutions for your exact requirements.

Frequently Asked

Common questions about 2-(1-Piperazinyl)-benzoic acid ethyl ester

What is 2-(1-Piperazinyl)-benzoic acid ethyl ester used for? +

2-(1-Piperazinyl)-benzoic acid ethyl ester is a piperazine-containing compound used extensively as a pharmacokinetic-enhancing motif used primarily in the pharmaceutical and cns therapeutics industries. Key applications include solubility enhancer via piperazine salt formation in drug formulation and amide bond formation via edc/hobt or hatu coupling in peptide synthesis.

Where can I buy 2-(1-Piperazinyl)-benzoic acid ethyl ester in the USA? +

ChemContract Research is a trusted USA-based supplier of 2-(1-Piperazinyl)-benzoic acid ethyl ester. We offer competitive pricing, fast domestic shipping from our Huntington Beach, California facility, and full quality documentation including Certificates of Analysis (CoA). Request a quote at chemistry@chem-contract.com or call +1 (714) 732-8549.

What purity levels are available for 2-(1-Piperazinyl)-benzoic acid ethyl ester? +

ChemContract Research supplies 2-(1-Piperazinyl)-benzoic acid ethyl ester in multiple purity grades: ≥95% standard grade, ≥97% high-purity grade, and ≥99% ultra-high-purity grade depending on application requirements. We can also provide custom purity grades through our synthesis capabilities. Contact us for specific purity information and CoA documentation.

Can ChemContract synthesize 2-(1-Piperazinyl)-benzoic acid ethyl ester in custom quantities? +

Yes. ChemContract Research offers custom synthesis services for 2-(1-Piperazinyl)-benzoic acid ethyl ester from milligram to multi-kilogram scale. Our cGMP-compliant facilities and experienced chemists can accommodate custom specifications, packaging requirements, and delivery timelines. Contact our team to discuss your project.

What coupling reagents work best with 2-(1-Piperazinyl)-benzoic acid ethyl ester? +

For amide bond formation from the carboxylic acid in 2-(1-Piperazinyl)-benzoic acid ethyl ester, HATU/DIPEA is recommended for peptide coupling (high yield, low epimerization). EDC/HOBt is a cost-effective alternative for non-peptide amides. T3P (propylphosphonic acid anhydride) offers excellent atom economy with easy workup. For ester formation, DCC/DMAP (Steglich conditions) or Mitsunobu conditions are standard.

What drug discovery applications use 2-(1-Piperazinyl)-benzoic acid ethyl ester? +

The Piperazine ring system(s) in 2-(1-Piperazinyl)-benzoic acid ethyl ester is a privileged structure in medicinal chemistry, appearing in numerous FDA-approved drugs. This scaffold is commonly used in kinase inhibitor design, GPCR modulator development, and lead optimization programs. ChemContract supplies this building block for early-stage discovery through process-scale manufacturing.

How should I store 2-(1-Piperazinyl)-benzoic acid ethyl ester? +

Store at room temperature in a tightly sealed container away from acids. Store at room temperature in a tightly sealed container. Protect from moisture and strong bases. Store at room temperature in a tightly sealed container away from heat and open flame. Always consult the compound-specific Safety Data Sheet (SDS) provided with your order for detailed storage requirements. ChemContract Research includes handling and storage documentation with every shipment.

What is the CAS number of 2-(1-Piperazinyl)-benzoic acid ethyl ester? +

The CAS Registry Number for 2-(1-Piperazinyl)-benzoic acid ethyl ester is 180417-98-5. This unique identifier is used worldwide to reference this specific compound in chemical databases, regulatory filings, and scientific literature. ChemContract Research supplies this compound with full quality documentation. Contact us at chemistry@chem-contract.com for availability and pricing.

Chemical analysis laboratory with HPLC instruments for purity and impurity testing Custom chemical synthesis reaction setup for pharmaceutical intermediate production

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