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Pyromellitic Anhydride

Pyromellitic Anhydride Structure
Pyromellitic Anhydride structure
CAS No.
89-32-7
Chemical Name:
Pyromellitic Anhydride
Synonyms
PMDA;Pyromellitic anhydride;1,2,4,5-BENZENETETRACARBOXYLIC ANHYDRIDE;BENZENE-1,2,4,5-TETRACARBOXYLIC DIANHYDRIDE;1,2,4,5-BENZENETETRACARBOXYLIC DIANHYDRIDE;Dicarboxylic anhydride;Pyromellitic acid dianhydride;benzenetetracarboxylic anhydride;1,2,4,5-Benzenetetracrboxylicdianhydride;1,2,3,4-Benzenetetracarboxylic dianhydride
CBNumber:
CB00124387
Molecular Formula:
C10H2O6
Molecular Weight:
218.12
MDL Number:
MFCD00005005
MOL File:
89-32-7.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-06-05 18:44:30
Product description Number Pack Size Price
Pyromellitic dianhydride 97% 412287 100g $74.2
Pyromellitic dianhydride 97% 412287 500g $242
Pyromellitic Dianhydride >98.0%(T) B0040 25g $17
Pyromellitic Dianhydride >98.0%(T) B0040 100g $33
Benzene-1,2,4,5-tetracarboxylic acid dianhydride 98% OR4903 100g $21
More product size
Request For Quotation

Pyromellitic Anhydride Properties

Melting point 283-286 °C(lit.)
Boiling point 397-400 °C(lit.)
Density 1,68 g/cm3
bulk density 400-600kg/m3
vapor pressure 0Pa at 25℃
refractive index 1.6000 (estimate)
Flash point 380 °C
storage temp. 2-30°C
solubility Soluble in dimethyl sulfoxide, acetone, chloroform, ethyl ether, n-hexane and benzene.
form Fine Powder
pka 5.45[at 20 ℃]
color White to pale yellow
Water Solubility decomposes
Sensitive Moisture Sensitive
BRN 213583
Henry's Law Constant 1.3×103 mol/(m3Pa) at 25℃, HSDB (2015)
InChI 1S/C10H2O6/c11-7-3-1-4-6(10(14)16-8(4)12)2-5(3)9(13)15-7/h1-2H
InChIKey ANSXAPJVJOKRDJ-UHFFFAOYSA-N
SMILES O=C1OC(=O)c2cc3C(=O)OC(=O)c3cc12
LogP -2.03 at 21.5℃
CAS DataBase Reference 89-32-7(CAS DataBase Reference)
Indirect Additives used in Food Contact Substances PYROMELLITIC DIANHYDRIDE
FDA 21 CFR 177.1630(Polyethylene phthalate polymers)
FDA UNII 2Z22T30QZQ
NIST Chemistry Reference 1,2,4,5-Benzenetetracarboxylic anhydride(89-32-7)
EPA Substance Registry System 1H,3H-Benzo[1,2-c:4,5-c']difuran-1,3,5,7-tetrone (89-32-7)
UNSPSC Code 12162002
NACRES NA.23

SAFETY

Risk and Safety Statements

Symbol(GHS)  Corrosion (GHS05)Health Hazard (GHS08)
GHS05,GHS08
Signal word  Danger
Hazard statements  H303-H315-H318-H317-H334
Precautionary statements  P501-P261-P272-P264-P280-P284-P302+P352-P342+P311-P362+P364-P304+P340-P333+P313-P305+P351+P338+P310
Hazard Codes  Xn
Risk Statements  41-42/43
Safety Statements  22-24-26-37/39
WGK Germany  1
RTECS  DB9300000
F  10-21
Autoignition Temperature 630°C
TSCA  TSCA listed
HS Code  29173980
Storage Class 11 - Combustible Solids
Hazard Classifications Eye Dam. 1
Resp. Sens. 1
Skin Sens. 1
Hazardous Substances Data 89-32-7(Hazardous Substances Data)
REACH Registrations Active
NFPA 704
1
3 1

Pyromellitic Anhydride price More Price(60)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 412287 Pyromellitic dianhydride 97% 89-32-7 100g $74.2 2026-04-30 Buy
Sigma-Aldrich 412287 Pyromellitic dianhydride 97% 89-32-7 500g $242 2026-04-30 Buy
TCI Chemical B0040 Pyromellitic Dianhydride >98.0%(T) 89-32-7 25g $17 2026-04-30 Buy
TCI Chemical B0040 Pyromellitic Dianhydride >98.0%(T) 89-32-7 100g $33 2026-04-30 Buy
Apolloscientific OR4903 Benzene-1,2,4,5-tetracarboxylic acid dianhydride 98% 89-32-7 100g $21 2026-06-04 Buy
Product number Packaging Price Buy
412287 100g $74.2 Buy
412287 500g $242 Buy
B0040 25g $17 Buy
B0040 100g $33 Buy
OR4903 100g $21 Buy

Pyromellitic Anhydride Chemical Properties,Uses,Production

Chemical Properties

White powder. Soluble in some organic solvents; hydrolyzes to the acid when exposed to moisture.

Uses

Pyromellitic dianhydride (PMDA) is employed as a curing agent for epoxy agent resins used for casting, laminating, the manufacture of moulding powders, adhesives and coatings.

Uses

Pyromellitic dianhydride is used as a monomer in the preparation of polyimide polymers such as kapton; thermoplastics such as polyesters, polyethers, plasticizers, and expoxy resins. It is involved in the preparation of high performance coatings due to its mechanical, thermal and oxidative stability properties. It acts as a curing agent for epoxy resins which find application in adhesives, coatings and molding powders. As an intermediate, it plays an important role in polyimide based materials like printed circuit boards, tape automated bonding and magnetic wire insulation.

Preparation

Pyromellitic Dianhydride is prepared by gas-phase oxidation of 1,2,4,5-tetramethylbenzene (or related tetrasubstituted benzene derivatives). An idealized equation is:
C6H2(CH3)4 + 6 O2 → C6H2(C2O3)2 + 6 H2O
In the laboratory, it can be prepared by dehydration of pyromellitic acid using acetic anhydride.

Application

Pyromellitic dianhydride (PMDA) has been used extensively as an important monomer in the preparation of a variety of thermoplastics such as polyesters, polycarbonates, polyethers polyethers, plasticizersplasticizers, expoxy resins, etc. Moreover, it is also useful in the preparation of high performance coatings that have been widely employed in many fields in our daily life beacuase of its excellent thermal, oxidative stability and excellent mechanical properties.
Pyromellitic dianhydride (PMDA) is one of several highly reactive acid anhydrides and used extensively in the production of thermoplastics and high-performance coatings. Anhydrides including PMDA are respiratory irritants and immediate-type sensitisers. Some anhydrides have been associated with occupational asthma. PMDA has also been related to occupational asthma.

General Description

Pyromellitic dianhydride (PMDA) is an acidic anhydride that can be used as a repair agent and as a chain extender in the formation of polyethylene terephthalate (PET) based chain extensions. It is mainly used in the production of thermoplastics and other coating applications.

Hazard

Skin irritant.

Flammability and Explosibility

Not classified

Purification Methods

Crystallise the dianhydride from ethyl methyl ketone or dioxane. Dry, and sublime it in vacuo.[Beilstein 19 H 196, 19/5 V 407.]

Pyromellitic Anhydride synthesis

89-05-4
89-32-7
Synthesis of Pyromellitic Anhydride from Pyromellitic acid

Pyromellitic Anhydride Preparation Products And Raw materials

Raw materials

1,2,4-Trimethylbenzene N-PROPYLBENZENE P-XYLENE m-Xylene Chromic acid
Anthracene tetramethylbenzene 1,2,4,5-Tetramethylbenzene

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Preparation Products

PYROMELLITIC DIIMIDE Polyimide film 1,2,4,5-BENZENETETRACARBOXAMIDE 1,2,4,5-TETRACYANOBENZENE 1,2,4,5-Cyclohexanetetracarboxylic Dianhydride
2,6-Bis(2-pyridinyl)benzo[1,2-c:4,5-c']dipyrrole-1,3,5,7-tetrone 2,6-Bis(3-hydroxyphenyl)-1,3,5,7-tetraoxo-1,2,3,5,6,7-hexahydrobenzo[1,2-c:4,5-c']dipyrrole 1,2,4,5-Benzenetetrakis(carbonyl chloride) 4-pmpmd 2,2-(1,3,5,7-tetraoxo-5,7-dihydropyrrolo(3,4-f)isoindole-2,6(1H,3H)diyl)dibenzoic acid

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Pyromellitic Anhydride Suppliers

Global( 450)Suppliers
Supplier Tel Email Country ProdList Advantage
Shanghai Daeyeon Chemicals Co., Ltd
021-64478606 +8615900664856 daeyeon001@vip.163.com China 2062 58
Hefei TNJ Chemical Industry Co.,Ltd.
+86-0551-65418671 +8618949823763 sales@tnjchem.com China 34563 58
Junwee Chemical co., Ltd.
+86-571-85808636 +86-13958122542 sales@junweechem.com China 823 58
SUZHOU SENFEIDA CHEMICAL CO.,LTD
+86-0512-83500002 +8618662433356 3899766280@qq.com China 26362 58
SHANGHAI YOUNG-CHEM CHEMICAL CO., LTD.
+8613817489192 hebe@ychemchemical.com China 2435 58
Hebei Chuanghai Biotechnology Co., Ltd 		+8615350571055 Sibel@chuanghaibio.com China 8738 58
Hebei Yanxi Chemical Co., Ltd. 		+8618531123677 faithe@yan-xi.com China 5853 58
Hebei Chuanghai Biotechnology Co,.LTD 		+86-86-13131129325 +8613131129325 sales1@chuanghaibio.com China 5228 58
Shanghai Daken Advanced Materials Co.,Ltd 		+86-2158073036 info@dakenam.com China 14014 58
Henan Tianfu Chemical Co.,Ltd. 		+86-0371-55170693 +86-19937530512 info@tianfuchem.com China 21586 55
Supplier Advantage
Shanghai Daeyeon Chemicals Co., Ltd
58
Hefei TNJ Chemical Industry Co.,Ltd.
58
Junwee Chemical co., Ltd.
58
SUZHOU SENFEIDA CHEMICAL CO.,LTD
58
SHANGHAI YOUNG-CHEM CHEMICAL CO., LTD.
58
Hebei Chuanghai Biotechnology Co., Ltd 		58
Hebei Yanxi Chemical Co., Ltd. 		58
Hebei Chuanghai Biotechnology Co,.LTD 		58
Shanghai Daken Advanced Materials Co.,Ltd 		58
Henan Tianfu Chemical Co.,Ltd. 		55

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Pyromellitic Dianhydride Spectrum

Pyromellitic Dianhydride(89-32-7)MSPyromellitic Dianhydride(89-32-7)1HNMRPyromellitic Dianhydride(89-32-7)13CNMRPyromellitic Dianhydride(89-32-7)IR1Pyromellitic Dianhydride(89-32-7)IR2

89-32-7(Pyromellitic Anhydride)Related Search:

Glutaric anhydride Erythromycin Estolate Allylbenzene Di-tert-butyl dicarbonate Succinic anhydride
3,3',4,4'-Biphenyltetracarboxylic dianhydride Pyromellitic acid Ethylbenzene 3,4,9,10-Perylenetetracarboxylic dianhydride 4,4'-Oxydiphthalic anhydride
PYROMELLITIC DIIMIDE Maleic anhydride Phthalic anhydride Benzene Acetic anhydride
Methyl 4-formylbenzoate Dimethyl terephthalate m-Phthalaldehyde Pyromellitic Anhydride

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1,2,4,5-Benzenetetracarboxylic 1,2:4,5-dianhydride 1,2,4,5benzenetetracarboxylic1,2:4,5dianhydride 1,2,4,5-benzenetetracarboxylic1,2:4,5-dianhydride 1,2,4,5-Benzenetetracrboxylicdianhydride pyromelliticacidanhydride pyromelliticaciddianhydride Pyromelliticanhydride BENZENE-1,2,4,5-TETRACARBOXYLIC 1,2,4,5-DIANHYDRIDE PYROMELLITIC DIANHYDRIDE 1,2,4,5-Benzenetetracarboxylic anhydride,99% 1, 2, 4, 5-Benzenetetracarboxylic acid anhydride TIMTEC-BB SBB008218 PYROMELLITIC DIANHYDRIDE (PMDA) 1,2,4,5-BENZENETETRACARBOXYLIC DIANHYDRIDE 97+% PYRYMELLITIC DIANHYDRIDE (PMDA) pyromellitic dianhydride, milled Pyromellitic dianhydride, [1,2,4,5-Benzenetetracarboxylic dianhydride] 1,2,4,5-BENZENE TETRACARBOXYLIC DIANHYDRIDE (PMDA, PYROMELLITIC DIANHYDRIDE) ,2,4,5-BENZENETETRACARBOXYLICANHYDRIDE PYROMELLITIC DIANHYDRIDE (1,2,4,5-BENZENETETRACARBOXYLIC ANHYDRIDE) 4,5-c]difuran-1,3,5,7-tetraone BDFtetron Piromellitic dianhydride Furo[3,4-f][2]benzoxole-1,3,5,7-tetrone 1,2,4,5-Benzenetetracarboxylic acid 1,2:4,5-dianhydride Terephthalic acid anhydride benzene-1,2:4,5-tetracarboxylic dianhydride benzene-1,2:4,5-tetracarboxylic dianhydride pyromellitic dianhydride 1,2,4,5-BENENETETRACARBOXYLIC ANHYDRIDE Benzene-1,2,4,5-tetracarboxylic dianhydride, PMDA 1,2,3,4-Benzetetracarboxylic dianhydride PYRROMELITICACIDDIANHYDRIDE itic dianhydride PyromeL 1h,3h-benzo(1,2-c:4,5-c’)difuran-1,3,5,7-tetrone 1H,3H-Benzo[1,2-c,4,5-c’]difuran-1,3,5,7-tetrone 1H,3H-Benzo[1,2-c:4,5-c']difuran-1,3,5,7-tetrone 1H,3H-Benzo[1,2-c:4,5-c’]difuran-1,3,5,7-tetrone Benzo[1,2-c:4,5-c']difuran-1,3,5,7-tetraone 1,2,4,5-BENZENETETRACARBOXYLIC-1,2:4,5-D 1,3-dioxo-1,3-dihydroisobenzofuran-5,6-dicarboxylic acid Pyromellitic dianhydride ,99.5% Pyromellitic dianhyd Benzo[1,2-c Pyromellitic acid anhydride pyromellitic1,2:4,5-dianhydride Pyromellitic Dianhydride (purified by sublimation) Pyromellitic dianhydride( PMDA) ,crystal,99.5% Pyromellitic dianhydride( PMDA) ,powder,99.5% 1,2,4,5-Benzenetetracarboxylic anhydride, 99% 100GR 1,2,4,5-Benzenetetracarboxylic anhydride, 99% 500GR 1H,3H-Benzo[1,2-c:4,5-c']difuran-1,3,5,7-tetrone C10H4O7 Benzene-1,2,4,5-tetracarboxylic acid dianhydride Pyromellitic dianhydride, PMDA, 1H,3H-Benzo[1,2-c:4,5-c']difuran-1,3,5,7-tetrone PyroMellitic dianhydride 97% PyroMellitic dianhydride, 99.5%, 99.5% Pyromellitic dianhydride( PMDA) ,99.5% PMDAPyromelliticdianhydride 1,2,4,5-Benzenetetracarboxylic anhydride (PMDA)