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Specialized in4-Aminophthalic acid CAS 5434-21-9and related product development and production

Chemical Name: 4-Aminophthalic acid
CAS No.: 5434-21-9
Appearance:Beige powder
Assay：≥98%

Samples: Available / Stock: Sufficient
Estimated delivery time: 3-5 days

4-Aminophthalic Acid (CAS 5434-21-9) Comprehensive User Guide

Table of Contents

1. Product Overview

4-Aminophthalic acid (CAS 5434-21-9) is an aromatic amine derivative with molecular formula C8H7NO4. This white to off-white crystalline powder exhibits dual functionality from both amine and carboxylic acid groups, making it essential in advanced organic synthesis.

Parameter Specification
CAS Number 5434-21-9
Purity ≥98% (HPLC)
Melting Point 285-290°C (dec.)
Solubility Sparingly soluble in water, soluble in DMSO/DMF
Storage 2-8°C in airtight container

2. Specifications & Comparative Analysis

Vendor Purity Packaging Lead Time
Vivalr Chem 99.2% 1kg foil bags 3-5 days
Supplier B 97.5% 500g glass bottles 2 weeks
Supplier C 95.8% 25kg drums 4 weeks

3. Industrial & Research Applications

  • Pharmaceutical Intermediates: Key precursor for non-steroidal anti-inflammatory drugs
  • Polymer Chemistry: Building block for high-performance polyimides
  • Coordination Chemistry: Chelating agent for transition metal complexes
  • Fluorescent Probes: Core component in pH-sensitive molecular sensors

4. Application Case Studies

Case 1: Pharmaceutical Intermediate Synthesis

A European API manufacturer achieved 22% yield improvement in anti-inflammatory drug synthesis through optimized 4-Aminophthalic acid coupling reactions under inert atmosphere.

Case 2: Advanced Polymer Development

Japanese materials engineers developed thermally stable polyimide films (Tg 320°C) using 4-Aminophthalic acid as co-monomer, enhancing aerospace component performance.

5. Verified Client Implementations

Client Application Outcome
ABC Pharmaceuticals NSAID Intermediate Reduced synthesis steps from 7 to 4
XYZ Materials High-T Resins 15% improvement in thermal stability

6. Technical Consultation & Quotation

Contact our technical team for application-specific guidance:

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Drug impurities to intermediates. Years of expertise.

Experience in the synthesis of complex compounds derived from American technology
Focus on the synthesis of difficult compounds
ISO 17034 dual system certification
National high-tech enterprise
5000+ square meters R&D center
A 70+ R&D team led by Chinese and foreign doctors
150 pieces (sets) of R&D equipment, 120+ fume hoods
18 patents

Solid QMS. Offer top-quality products and services.

Through more than ten years of continuous technological innovation and experience accumulation, the team's R&D personnel have established a complete quality management system for CATO, and have successively obtained ISO9001, ISO17034, CNAS and other international certifications.
It has successfully passed on-site inspections from the United States, Australia, Poland, Japan and domestic pharmaceutical company customers and institutions many times, providing high-quality one-stop services for R&D and production of new drugs around the world.

More than 150 sets of equipment to ensure quality.

The emphasis on quality is the basis for our survival and development, and is the most basic requirement for the products and services we provide. CATO has established a scientific, strict and comprehensive quality prevention and assurance system in accordance with international quality standards. Through advanced testing equipment such as GC-MS, chromatograph, nuclear magnetic resonance, scanning electron microscope, and ultraviolet light, quality management is implemented into every aspect of production and operation activities such as raw materials, inventory, production, testing, sales, verification, and training, and "All actions are controlled and traceable" as the work code of conduct for CATO employees.

Over 1000 cases. Synthesize complex compounds.

Currently, CATO serves more than 500 pharmaceutical companies, biotechnology and other companies around the world. Project types cover the entire cycle from pre-clinical to commercialization stages. As of 2020, CATO has delivered more than 1,000 projects in total.
The company has core technologies in key core technology fields such as high-end fluorine chemistry, asymmetric chiral synthesis, glycoside and biological enzyme technology, and continuous microreactors.

About the company

International Standard Chemicals Sell To All Over The World

FAQ

Does it support auditing?

Support, please make an appointment one day in advance. Company address: Room 716, Building 3, Ligao International Garden, No.1222 West Aoti Road, Lixia District, Jinan City, Shandong Province, P.R. China

Whether to provide samples?

Free samples can be provided for low value products, and small packaging specifications can be purchased for high value products.

Delivery time

Under normal circumstances, all items are in stock and will be shipped before 4 o'clock on the same day. Some products are produced to order, depending on the workshop situation and production schedule.

What is the production capacity?

At present, the company's workshop production equipment is mainly based on laboratories and pilot lines, with a maximum daily production capacity of 1.5 tons.

Can additional test indicators be added?

We can provide moisture, UV, IR, HNMR, CNMR, two-dimensional nuclear magnetic spectroscopy, optical rotation detection, elemental analysis, TGA analysis and residue analysis and other related tests to support personalized needs.

Technical direction

In the early stage, our company mainly engaged in drug impurity synthesis and standard product production, with core technologies in chirality, fluorine chemistry, and heterocycles.

Why Chem-iso’s delivery rate is guaranteed to be 99.99%

5000+

square meter R&D center

150+

China(set) of R&D equipment

150+

Fume hood

180+

R&D team

User’evaluation of us

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