4,4′-Thiodiphenol

CAS 2664-63-3S(C6H4OH)2Polymer Science

4,4′-Thiodiphenol (CAS: 2664-63-3) is an organic compound with the molecular formula S(C6H4OH)2 and a molecular weight of 218.27 g/mol. This disubstituted phenol derivative serves as a valuable monomer in polymer science and materials science. Its structure lends itself to the synthesis of specialised polymers, contributing to advancements in material properties and applications.

IUPAC: 4-Hydroxyphenyl sulfide,TDP
Synonyms: 4-Hydroxyphenyl sulfideTDPS(C6H4OH)2

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4,4′-Thiodiphenol (S(C6H4OH)2) — chemical structure, CAS 2664-63-3; Materials Science, fine chemical supplied by Tech Serve Solutions

Materials ScienceMonomersPolymer Science

01 /Applications

Polymer Synthesis

Utilised as a monomer in the production of high-performance polymers, such as polyethers and polyesters, imparting thermal stability and chemical resistance.

Materials Science Research

Investigated for its potential in developing advanced materials due to its unique chemical structure and reactivity.

Intermediate for Organic Synthesis

Serves as a building block in the synthesis of more complex organic molecules and functional materials.

02 /Properties

Molecular weight	218.27
Linear formula	S(C6H4OH)2
Assay	99%
Melting point	154-156 °C(lit.)

03 /Safety & handling

GHS hazard pictogram: Corrosive (GHS05) — Corrosive

Danger

Hazard statements

H314Causes severe skin burns and eye damage

Precautionary statements

P280Wear protective gloves, clothing and eye/face protection
P305IF IN EYES
P310Immediately call a POISON CENTER or doctor

Protective equipment	Eyeshields, Faceshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges
Transport (UN / ADR)	UN 3261 8 / PGII
Water hazard class (WGK, DE)	2
Hazard codes (EU)	C
Risk statements (R)	34
Safety statements (S)	26-27-36/37/39-45

Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.

04 /Identifiers & registry

CAS number

2664-63-3

MDL number

MFCD00002349

PubChem substance

24852804

05 /Quality & supply

Documentation

Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.

Supply & logistics

Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.

06 /Frequently asked questions

What is 4,4′-Thiodiphenol used for?

4,4′-Thiodiphenol is primarily used as a monomer in polymer synthesis, particularly for creating polymers with enhanced thermal and chemical resistance, and in materials science research.

What is the CAS number and chemical formula for 4,4′-Thiodiphenol?

The CAS number is 2664-63-3 and the linear chemical formula is S(C6H4OH)2.

What grade and purity does Tech Serve Solutions supply?

Tech Serve Solutions supplies 4,4′-Thiodiphenol with an assay of 99%. This is a technical/research grade, and we do not represent it as USP, BP, or EP grade.

How should 4,4′-Thiodiphenol be handled safely?

4,4′-Thiodiphenol causes severe skin burns and eye damage (H314). Appropriate personal protective equipment, including eyeshields, face shields, gloves, and respiratory protection (type N100 or P3 filters), is mandatory. Handle with extreme caution in a well-ventilated area.

How is 4,4′-Thiodiphenol packed and shipped?

4,4′-Thiodiphenol is classified under UN 3261, Hazard Class 8, Packing Group II. It is carefully packed and exported by Tech Serve Solutions in compliance with international shipping regulations.

How can I request a quote or sample for 4,4′-Thiodiphenol?

To request a quote or a sample of 4,4′-Thiodiphenol, please contact our sales department via the website or telephone, providing your specific requirements and shipping details.