Dyes And Pigments Intermediates CAS NO. 5434-21-9 / P-Aminophthalic Acid

Update time：2022-02-05 21:45:04

Price:Negotiable

Min Order:1

Basic Info

Brand Name	Changzhou Welton Chemical Co., Ltd	Place of Origin	China

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

Used as dyestuff Intermediates

Specifications:

Product?name	P-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:

P-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,4-Aminophthalic?acid

Appearance:?Grayish?crystalline?powder

Applications:

Medicine,?dyestuff?and?pharmaceutical?intermediates.

Competitive?Advantage:

1. We?are?the?largest?manufacturer?of P-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.

3.?Our?company?has?the?self-support?export?and?import?authority?and?our?factory?is?inspected?

by?our?valuable?and?honored?customers.