Pyromellitic Acid CAS 89-05-4

Pyromellitic Acid is a white crystalline powder, soluble in hot water and polar solvents.As an important organic synthesis intermediate, it is mainly used in the production of high temperature resistant materials (such as polyimide resin), insulating coatings for electronic components and special adhesives.Its high thermal stability and tetrafunctional group properties give the material excellent performance, but the operation should avoid inhalation of dust, which is irritating to the skin and mucous membranes.

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Model:
89-05-4
Brand:
Futurechemical
Code:
89-05-4

Product Description

Pyromellitic acid Basic information
Product Name:	Pyromellitic acid
CAS:	89-05-4
MF:	C10H6O8
MW:	254.15
EINECS:	201-879-5
Mol File:	89-05-4.mol
Pyromellitic acid Chemical 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)
Fp	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	148,004
Stability:	Stable. Incompatible with strong oxidizing agents, strong bases.
InChIKey	CYIDZMCFTVVTJO-UHFFFAOYSA-N
LogP	0.15 at 25℃
CAS DataBase Reference	89-05-4(CAS DataBase Reference)
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)

Pyromellitic Acid CAS 89-05-4 C10H6O8 Epoxy resin curing agent High-temperature resistant adhesive Plastic plasticizer Metal corrosion inhibitor and scale inhibitor High-efficiency flame retardant Building fireproof coating

Quality Assurance

Full-Process Quality Control: From incoming raw material inspection to in-process monitoring and final outgoing checks, every batch is inspected at each production stage against strict acceptance standards.
Third-Party Certified & Tested: Our quality management system is certified to ISO 9001, and products are regularly tested by accredited laboratories (e.g. SGS, TÜV). Test reports are available on request.
100% Batch Traceability: Each batch carries a unique lot number that links raw material records, production parameters, and test results, enabling complete traceability from factory to final delivery.
Pre-Shipment Inspection: Every order passes a final pre-shipment inspection, with inspection photos and reports shared before dispatch.

FAQ From Customers

Q1: What is the minimum order quantity?

A: There is no quantity limit for the first sample or trial order. Just tell us the actual quantity you need.
Q2: How can I confirm that the quality meets the requirements?

A: Provide your specifications, and our technical team will check them or customize them for you; we can provide TDS, MSDS, and COA, and accept third-party testing.
Q3: How do you ensure stable quality?

A: We manufacture under an ISO 9001 quality system, test every batch before release, and retain samples for 24 months for traceability.
Q4: Do you provide samples?

A: Yes — Free samples are available; freight is at buyer's expense for express delivery.