Diphenyl Sulfone CAS 127‑63‑9

Frequently Asked Questions

Question 1: What is Diphenyl Sulfone (CAS 127-63-9)?

Diphenyl Sulfone, also known as Phenyl Sulfone or 1,1′-Sulfonyldibenzene, is a white crystal powder with the molecular formula C₁₂H₁₀O₂S and a molecular weight of 218.27 g/mol.

Purity: ≥99%
Appearance: White crystal powder

It is a stable aromatic sulfone with high thermal and chemical resistance.

Question 2: What is the main use of Diphenyl Sulfone?

Diphenyl Sulfone is mainly used as a high-temperature solvent and organic synthesis intermediate.

It is commonly used for the production of high-performance polymers such as PEEK, and as an intermediate in pharmaceutical, agrochemical, and dye synthesis.

Question 3: Why is Diphenyl Sulfone suitable as a high-temperature solvent?

Diphenyl Sulfone has a high boiling point of approximately 379°C and excellent thermal stability.

Its chemical inertness and high boiling point make it effective for dissolving rigid polymers such as PEEK under high-temperature conditions.

Question 4: What are the common applications of Diphenyl Sulfone?

Diphenyl Sulfone is commonly used in:

• High-performance polymer manufacturing, such as PEEK

• Pharmaceutical and agrochemical intermediate synthesis

• Organic synthesis as a high-temperature reaction medium

• Dye and pigment intermediate production

• Specialty chemical manufacturing

Question 5: What are the advantages of your Diphenyl Sulfone supply?

We provide Diphenyl Sulfone with a focus on consistent quality, stable supply, and reliable batch performance.

Our advantages include:

• Mature production process and established quality control

• Sufficient inventory to support regular and bulk orders

• Consistent product quality between batches

• Long-term cooperation experience with many customers

• Flexible supply and packaging arrangements according to customer requirements