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Pyromellitic acid

Pyromellitic acid structure

CAS No.: 89-05-4

Chemical Name:: Pyromellitic acid

Synonyms: 1,2,4,5-BENZENETETRACARBOXYLIC ACID;BENZENE-1,2,4,5-TETRACARBOXYLIC ACID;1,2,4,5-BenzenetetracarboxyL;1,2,4,5-Benzenetetracarboxylic acid, 96% 5GR;usafxr-20;USAF xr-20;AKOS AUF2102;pyromelliticaci;Pyrome1htic Acid;PYROMELLITIC ACID

CBNumber:: CB9370591

Molecular Formula:: C10H6O8

Molecular Weight:: 254.15

MDL Number:: MFCD00002471

MOL File:: 89-05-4.mol

MSDS File:: SDS

TDS File:: TDS

Last updated:2026-05-28 05:56:30

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Pyromellitic acid Properties

Melting point	281-284.5 °C(lit.)
Boiling point	317.36°C (rough estimate)
Density	0,56 g/cm³
refractive index	1.7010 (estimate)
Flash point	325 °C
storage temp.	Store below +30°C.
solubility	0.1 M NaOH: 0.2 M, clear, faintly yellow
pka	pK1: 1.92;pK2: 2.87;pK3: 4.49;pK4: 5.63 (25°C)
form	Crystalline Powder
color	White to very slightly yellow
Water Solubility	1.5 g/100 mL (20 ºC)
Merck	14,8004
Henry's Law Constant	1.6×10¹³ mol/(m³Pa) at 25℃, Yaws (2003)
Stability	Stable. Incompatible with strong oxidizing agents, strong bases.
InChI	1S/C10H6O8/c11-7(12)3-1-4(8(13)14)6(10(17)18)2-5(3)9(15)16/h1-2H,(H,11,12)(H,13,14)(H,15,16)(H,17,18)
InChIKey	CYIDZMCFTVVTJO-UHFFFAOYSA-N
SMILES	OC(=O)c1cc(C(O)=O)c(cc1C(O)=O)C(O)=O
LogP	0.15 at 25℃
CAS DataBase Reference	89-05-4(CAS DataBase Reference)
EWG's Food Scores	1
FDA UNII	D9UXG2U6ZU
NIST Chemistry Reference	1,2,4,5-Benzene-tetracarboxylic acid(89-05-4)
EPA Substance Registry System	1,2,4,5-Benzenetetracarboxylic acid (89-05-4)
UNSPSC Code	12352106
NACRES	NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)

GHS07

Signal word

Warning

Hazard statements

H319

Precautionary statements

P280-P305+P351+P338-P337+P313

PPE

dust mask type N95 (US), Eyeshields, Gloves

Hazard Codes

Risk Statements

36/37/38-36

Safety Statements

26-36-37/39-24/25

WGK Germany

RTECS

DB9275000

TSCA

TSCA listed

HS Code

29173980

Storage Class

11 - Combustible Solids

REACH Registrations

Inactive

NFPA 704

	0
2		0

Pyromellitic acid price More Price(55)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	B4007	1,2,4,5-Benzenetetracarboxylic acid 96%	89-05-4	100g	$52.8	2026-04-30	Buy
Sigma-Aldrich	8.00784	1,2,4,5-Benzenetetracarboxylic acid for synthesis	89-05-4	5G	$42.4	2026-04-30	Buy
Sigma-Aldrich	B4007	1,2,4,5-Benzenetetracarboxylic acid 96%	89-05-4	500g	$128	2026-04-30	Buy
Sigma-Aldrich	8.00784	1,2,4,5-Benzenetetracarboxylic acid for synthesis	89-05-4	50g	$43.1	2026-04-30	Buy
Sigma-Aldrich	8.00784	1,2,4,5-Benzenetetracarboxylic acid for synthesis	89-05-4	250g	$93.4	2026-04-30	Buy

Product number	Packaging	Price	Buy
B4007	100g	$52.8	Buy
8.00784	5G	$42.4	Buy
B4007	500g	$128	Buy
8.00784	50g	$43.1	Buy
8.00784	250g	$93.4	Buy

Pyromellitic acid Chemical Properties, Uses, Production

Chemical Properties

White powder. Absorbs moisture slowly if exposed to atmosphere. Soluble in alcohol, slightly soluble in water.

Uses

Pyromellitic acid (PMA) is mainly used as intermediate for powder coating. Product Data Sheet

Uses

1,2,4,5-benzenetetracarboxylic acid is used for the synthesis of the polyimide, pyromellitic octyl, etc., it is the main raw material of matting curing agent.

Uses

Pyromellitic acid is an eluent used in anion chromatography and forms complexes with magnesium and calcium ions. It is used as a curing agent, as an intermediate for powder coating and a cross-linking agent for alkyd resin. It is involved in the synthesis of polyimide and pyromellitic octyl.

Definition

ChEBI: A tetracarboxylic acid that is benzene substituted by four carboxy groups at positions 1, 2, 4 and 5 respectively.

Hazard

Skin irritant, may be carcinogenic.

Purification Methods

Dissolve it in 5.7 parts of hot dimethylformamide, decolorise, filter and cool. The precipitate is collected and dried in air. The solvent is removed by heating in an oven at 150-170o for several hours. It also crystallises from water. [Beilstein 9 H 997, 9 IV 3804.]

Pyromellitic acid synthesis

Synthesis of Pyromellitic acid from Pyromellitic Dianhydride

Pyromellitic acid Preparation Products And Raw materials

Raw materials

1,2,4-Trimethylbenzene 1,2,4,5-Tetramethylbenzene 5-Methyl-1,2,4-benzenetricarboxylic acid 1,2,3,4,5,6,7,8-Octahydroanthracene 2,4,5-Trimethylbenzaldehyde

2,5-Bis(chloromethyl)-p-xylene 1,2-Benzenedicarboxylic acid, 4,5-dimethyl- 2,5-Dimethylterephthalic acid 2,4,5-Trimethylbenzoic acid 1,2,4-Benzenetricarboxylic acid

Pyromellitic Dianhydride

1of3

Preparation Products

photosensitive polyimide photoresist (PSPI) 1,2,4,5-Tetracyanobenzene 1,2,4,5-Benzenetetrakis(carbonyl chloride) 1,2,4,5-Benzenetetracarboxamide

Pyromellitic acid Suppliers

Global Suppliers ( 369)

Supplier	Tel	Email	Country	ProdList	Advantage
Shanghai Kaisai Chemical Co., Ltd	021-33516722 13701817765	kaisaichem@163.com	China	4604	58
Shandong Lifan Chemical Co. LTD	17661223836	896889070@qq.com	China	97	58
Hubei Xinjiecheng Chemical Technology Co., Ltd	18008658050 18008658050	630831575@qq.com	China	2812	58
J & K SCIENTIFIC LTD.	18210857532 18210857532	jkinfo@jkchemical.com	China	96815	76
Meryer (Shanghai) Chemical Technology Co., Ltd.	4006356688 18621169109	market03@meryer.com	China	40202	62
Alfa Aesar	400-6106006	saleschina@alfa-asia.com	China	30103	84
TCI (Shanghai) Development Co., Ltd.	021-67121386	Sales-CN@TCIchemicals.com	China	24512	81
Beijing HwrkChemical Technology Co., Ltd	89508211 18501085097	sales.bj@hwrkchemical.com	China	9407	55
Energy Chemical	400-0056266	sales8178@energy-chemical.com	China	44850	61
Beijing Ouhe Technology Co., Ltd	13552068683 13522913783	2355560935@qq.com	China	11777	60

Supplier	Advantage
Shanghai Kaisai Chemical Co., Ltd	58
Shandong Lifan Chemical Co. LTD	58
Hubei Xinjiecheng Chemical Technology Co., Ltd	58
J & K SCIENTIFIC LTD.	76
Meryer (Shanghai) Chemical Technology Co., Ltd.	62
Alfa Aesar	84
TCI (Shanghai) Development Co., Ltd.	81
Beijing HwrkChemical Technology Co., Ltd	55
Energy Chemical	61
Beijing Ouhe Technology Co., Ltd	60

View Latest Price from Pyromellitic acid manufacturers

Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
2026-09-02	Pyromellitic acid 89-05-4	$6.00	1KG	99%		Henan Fengda Chemical Co., Ltd
2025-06-27	Pyromellitic acid 89-05-4		1KG	99%	500000kg	Hebei Chuanghai Biotechnology Co., Ltd
2025-06-20	pyromellitic acid 89-05-4		1kg	0.99	20tons	Hebei Yanxi Chemical Co., Ltd.

Pyromellitic acid
89-05-4
$6.00
99%
Henan Fengda Chemical Co., Ltd

Pyromellitic acid
89-05-4
99%
Hebei Chuanghai Biotechnology Co., Ltd

pyromellitic acid
89-05-4
$0.00
0.99
Hebei Yanxi Chemical Co., Ltd.

Pyromellitic acid Spectrum

Pyromellitic acid(89-05-4)MS Pyromellitic acid(89-05-4)¹HNMR Pyromellitic acid(89-05-4)¹³CNMR Pyromellitic acid(89-05-4)IR1 Pyromellitic acid(89-05-4)IR2 Pyromellitic acid(89-05-4)Raman

89-05-4 (Pyromellitic acid) Related Search:

Trimesic acid 1,4,5,8-Naphthalenetetracarboxylic acid Benzoic acid Tetrachlorophthalic acid Isophthalic acid

Phthalic acid Folic acid Ethylbenzene Benzyl benzoate Bis(2-ethylhexyl) phthalate

Allylbenzene Potassium hydrogen phthalate Ethyl 2-(Chlorosulfonyl)acetate 1,3,5-Benzenetricarboxaldehyde Citric acid

Glycine Benzene Ascoric Acid

1of4

USAF xr-20 1,2,4,5-BenzenetetracarboxyL benzene-1,2,4,5-tetracarboxylate 1,2,4,5-Benzenetetracarboxylic acid,Pyromellitic acid 1,2,4,5-Benzenetetracarboxylic acid, 96% 100GR 1,2,4,5-Benzenetetracarboxylic acid, 96% 5GR 1,2,4,5-BENZENETETRACARBOXYLIC ACID FOR Pyrome1htic Acid AKOS AUF2102 BENZENE-1,2,4,5-TETRACARBOXYLIC ACID HYDRATE 1,2,4,5-TETRACARBOXYBENZENE RARECHEM AL BO 0488 PYROMELLITIC ACID PYROMELLITIC ACID HYDRATE usafxr-20 PYROMELLITIC ACID FOR FLUORESCENCE 1,2,4,5-BENZENETETRACARBOXYLIC ACID 96% PYROMELLITICACID,DRYCAKE PYROMELLITIC ACID (1,2,4,5-BENZENETETRACARBOXYLIC ACID) 1,2,4,5-Benzenetetracarboxylic acid,96% PyromelliticAcid> 1,2,4,5-Benzenetetracarboxylic acid,>98% pyromelliticaci TIANFU-CHEM CAS:89-05-4 1,2,4,5-Benzenetetracarboxylic acid BUFFER SOLUTION, PH 7.7 Buffer solution HPCE pH 7.7 Pyromellitic acid electrolyte buffer for anion HPCE, Sodium pyromellitate buffer solution 1,2,4,5-BENZENETETRACARBOXYLIC ACID BENZENE-1,2,4,5-TETRACARBOXYLIC ACID 89-05-4 32632 1989-5-4 1989-05-4 1989-05-04 86-05-4 98-05-4 89054 C6H2CO2H4 C10H6O8 C10H6O8xH2O C10H2O8 Organic Building Blocks Chelators Carbonyl Compounds Carboxylic Acids C10 BioChemika Ultra Building Blocks Biochemicals and Reagents BioChemical Intermediates of Dyes and Pigments K00001