1,4-Benzoquinone (PBQ) CAS 106-51-4

• Packaging: 25 kg/drum. Custom packaging can be discussed based on order quantity and transportation requirements.

• Storage: Ventilation and low-temperature drying in the warehouse; Store separately from oxidants and food additives.

Storage & Handling Notes

For solid‑form 1,4‑Benzoquinone, prolonged exposure to direct sunlight, high ambient temperature, or humid atmosphere may cause the material to decompose, discolor or sublime.Store in a tightly‑closed container, kept in a cool, dry and well‑ventilated warehouse. Keep away from heat sources, oxidizing agents and reducing substances. Avoid long‑term contact with air. Prevent dust inhalation and skin contact during manual handling.

Product Origin

Jinan, China

Lead Time

Immediately after payment

Departure Ports

Qingdao / Tianjin / Shanghai / Ningbo

Sample Support

Samples are available for evaluation before bulk orders. Shipment arrangements depend on destination and applicable transportation requirements.

Production Workshop

Laboratory Analysis Area

Product Quality Testing

Batch Quality Control

Consistent quality control for each production batch.

COA / TDS / SDS

Technical documents available upon request.

Sample Support

Samples available for product evaluation.

Custom Specifications Available

Custom specifications available upon request.

View Factory & Quality Control →          View Technical Documents →

Applications of 1,4-Benzoquinone

1,4-Benzoquinone (CAS 106-51-4) is an aromatic cyclic compound widely used as a synthetic building block in fine chemical, agrochemical and pharmaceutical formulations. Its molecular structure delivers high chemical reactivity, making it particularly suitable for oxidation-reduction synthesis, polymer inhibition systems, and selected high-purity intermediate manufacturing.

Fine Chemicals & Dye Intermediates

1,4-Benzoquinone is commonly used in the production of dyestuff intermediates for organic dye synthesis. Its reactive quinone structure can support efficient oxidation conversion, good chemical activity, and synthesis versatility, making it suitable for fine chemical intermediate applications.

Typical application areas include:

• Dye synthesis intermediates

• Organic fine chemicals

• Rubber antioxidant raw materials

• Pharmaceutical intermediate manufacturing

• Biochemical analytical reagents

Polymer Inhibitors & Stabilizers

1,4-Benzoquinone can be used in monomer systems designed for free-radical polymerization inhibition. 1,4-Benzoquinone-based formulations may provide effective suppression of unwanted premature polymerization, including resistance to spontaneous thermal curing during storage and transportation.

It is particularly suitable for formulations where effective polymerization inhibition, good compatibility with vinyl monomers, and stable storage performance are required.

Agrochemical & Pharmaceutical Intermediates

1,4-Benzoquinone is also used as a key raw component in agrochemical and pharmaceutical intermediate synthesis. These intermediate systems are applied in pesticide raw-material production and applications requiring high-purity organic synthesis performance.

Typical applications include:

• Pesticide synthetic intermediates

• Veterinary drug raw materials

• Biochemical research reagents

• Organic synthetic raw materials

Biochemical Reagents & Fine Synthesis

1,4-Benzoquinone-derived systems can be used in biochemical assay and fine organic synthesis applications, particularly where redox reactivity and high reaction activity are important performance considerations.

The final performance of 1,4-Benzoquinone in any synthesis or formulation system depends on the complete formulation, reactant ratio, processing conditions, reaction environment, and intended end use. Customers should evaluate product suitability according to their specific formulation and application requirements.

Q: What is PBQ used for?

A: The main outlet is as a reactive quinone building block for dyestuff and fine-chemical intermediates, agrochemical synthesis and pharmaceutical intermediate manufacture. It is also widely used as a polymerization inhibitor that suppresses premature free-radical curing of vinyl and acrylic monomers during storage and transport, and as a rubber-antioxidant feedstock. In laboratories it appears as an oxidizing reference reagent in biochemical assays.

Q: What kinds of transportation types can you provide?

A: PBQ moves as a hazardous solid (oxidizing/harmful), so it is booked through specialized chemical forwarders rather than general cargo channels. Small samples go by DG-approved courier; bulk drums move by sea as containerized dangerous goods; air freight is possible on request subject to IATA acceptance. We prepare the MSDS, DG packing certificate and export declaration. Departure ports include Qingdao, Tianjin, Shanghai and Ningbo.

Q: What pre-sales and after-sales support do you provide?

A: We respond within 24 hours and provide technical, order, and logistics support throughout the cooperation process.