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Changzhou Welton Chemical Co., Ltd.

Main products: Biological Buffers ,Mops Buffer ,Pharmaceutical Intermediates

Home/Products/Grayish Crystalline Powder Medicine Intermediates 4-Aminophthalic Acid CAS 5434-21-9/

Grayish Crystalline Powder Medicine Intermediates 4-Aminophthalic Acid CAS 5434-21-9

Update time:2022-02-05 21:41:29
Price:Negotiable
Min Order:1 Piece / Pieces
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  • T/T L/C D/P D/A
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Basic Info

Brand NameChangzhou Welton Chemical Co., LtdPlace of OriginChina

Product Description


Product Description




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

Grayish Crystalline Powder Medicine Intermediates 4-Aminophthalic Acid CAS ?5434-21-9


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:


Usage of?4-Aminophthalic Acid:


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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