Isophthalic acid CAS 121-91-5 supplier in china | China | Manufacturer

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Product Name: Isophthalic acid	CAS No.: 121-91-5
EC-No.: 204-506-4	Min. Order: 10kg
Purity: 99%	Supply Ability: 100000kg
Release date: 2025/05/26
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Product Name:	Isophthalic acid
Synonyms:	RARECHEM AL BO 0036;M-PHTHALIC ACID;1,3-dicarboxybenzene;1,3-phthalicacid;m-benzenedicarboxylicacid;m-Dicarboxybenzene;1,3-BENZENEDICARBOXYLIC ACID;1,3-PHENYL DICARBOXYLIC ACID
CAS:	121-91-5
MF:	C8H6O4
MW:	166.13
EINECS:	204-506-4

Isophthalic acid is used as an intermediate for high performance unsaturated polyesters, resins for coatings, high solids paints, gel coats and modifier of polyethylene terephthalate for bottles. It acts as precursors for the fire-resistant material nomex as well as used in the preparation of high-performance polymer polybenzimidazole. It is also employed as an input for the production of insulation materials.

Specification

ITEMS	SPECIFICATIONS	RESULTS
Appearance	White, crystalline powder or colorless crystals	Passes
Identification	Accord With BP2007	Passes
Assay	99.5%~101.0%	99.97%
Melting point	75°C~78°C	77°C
Optical rotation	-0.05°~+0.05°	0.00°
Heavy metals	≤ 0.001%	<0.001%
Related substances
Impurity B	≤ 0.3%	Passes
Any other impurity	≤ 0.3%	Passes
Total of all impurities apart from impurity B	≤ 0.7%	Passes
Impurity F	≤ 0.1%	Not detected
Sulphated ash	≤ 0.1%	0.02%
Appearance of solution	Accord With BP2010	Passes

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Recommended supplier

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Hebei Chuanghai Biotechnology Co,.LTD

Min. Order:	10kg
Supply Ability:	100000kg
Update Time:	2025-05-26