CAS NO. 5434-21-9 Dyestuff Pigment Intermediates 4-Aminophthalic Acid 98% MIN

Product description


Product Description




Delivery Time:As per customer’s requirement
Certification:ISO9001, ISO14001

Specifications:























Product name



4-Aminophthalic acid



CAS No.



5434-21-9



Appearance



Grayish crystalline powder



Assay (HPLC) 


Impurity (as 3-isomer)


Total assay(4-APA plus 3-APA)



4-APA≥90%


3-APA: 0~10%


≥98%



Melting point



342-345℃



Loss on drying



≤0.3%



Ignition Residue



≤0.5%



Heavy metals



≤20ppm



Iron 



≤50ppm



Sodium



≤2000ppm



Description:


4-Aminophthalic acid, 98%MIN


CAS No.: 5434-21-9


EINECS No.: 226-596-4


Molecular formula: C8H7NO4


Molecular Weight: 181.15


Structural formula: 


Synonyms: 4-APA,P-Aminophthalic acid


Appearance: Grayish crystalline powder


Applications:


Medicine, dyestuff and pharmaceutical intermediates.


Competitive Advantage:


1. We are the largest manufacturer of 4-Aminophthalic acid in China with more than 12 years of production


 and export history.


2. Based on our years of experience in this field, we take pleasure in bringing you our high quality and


 consistency products with very competitive price, prompt delivery, and very quick response service.


4. Our company has the self-support export and import authority and our factory is inspected by our valuable 


and honored customers.



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Next:CAS NO 530-62-1 98% MIN Pharmaceutical Intermediates N - Carbonyldiimidazole

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Changzhou Welton Chemical Co., Ltd.

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