4,4'-Dichlorodiphenyl sulfone
Synonym(s):4,4′-Dichlorodiphenyl sulfone;4-Chlorophenyl sulfone
- CAS NO.:80-07-9
- Empirical Formula: C12H8Cl2O2S
- Molecular Weight: 287.16
- MDL number: MFCD00000619
- EINECS: 201-247-9
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-06-24 18:39:39
What is 4,4'-Dichlorodiphenyl sulfone?
Chemical properties
off-white crystals or powder
The Uses of 4,4'-Dichlorodiphenyl sulfone
4,4’Dichlorodiphenyl Sulfone is an impurity of Dapson (D193250), an antibacterial used in the treatment of dermatitis herpetiformis.
The Uses of 4,4'-Dichlorodiphenyl sulfone
Bis(4-chlorophenyl) sulfone is used as a precursor to prepare 4,4'-diamino-diphenyl sulfone and polysulfone plastics. It is also used to prepare rigid and temperature resistant polymers such as PES or Udel through polymerization with bisphenol-A and bisphenol-S. Further, the udel polymer finds applications in plumbing pipes, printer cartridges and automobile fuses.
General Description
Crystals or off-white powder.
Air & Water Reactions
Insoluble in water.
Reactivity Profile
4,4'-Dichlorodiphenyl sulfone is incompatible with strong oxidizers.
Fire Hazard
Flash point data for 4,4'-Dichlorodiphenyl sulfone are not available; however, 4,4'-Dichlorodiphenyl sulfone is probably combustible.
Flammability and Explosibility
Non flammable
Safety Profile
Mildly toxic by ingestion. When heated to decomposition it emitsvery toxic fumes of Cl- and SOx.
Properties of 4,4'-Dichlorodiphenyl sulfone
| Melting point: | 143-146 °C(lit.) |
| Boiling point: | 250 °C10 mm Hg(lit.) |
| Density | 1.54g/cm3 |
| vapor pressure | 0Pa at 25℃ |
| Flash point: | 233 °C |
| storage temp. | Sealed in dry,Room Temperature |
| solubility | Chloroform (Slightly), Methanol (Slightly) |
| form | Fine Powder |
| color | White |
| Water Solubility | <0.1 g/100 mL at 20 ºC |
| Sensitive | Moisture Sensitive |
| BRN | 2052955 |
| Stability: | Stable. Combustible. Incompatible with strong oxidizing agents. |
| CAS DataBase Reference | 80-07-9(CAS DataBase Reference) |
| NIST Chemistry Reference | 4,4'-Dichlorodiphenyl sulphone(80-07-9) |
| EPA Substance Registry System | p,p'-Dichlorodiphenyl sulfone (80-07-9) |
Safety information for 4,4'-Dichlorodiphenyl sulfone
| Signal word | Warning |
| Pictogram(s) |
![]() Exclamation Mark Irritant GHS07 ![]() Environment GHS09 |
| GHS Hazard Statements |
H319:Serious eye damage/eye irritation H411:Hazardous to the aquatic environment, long-term hazard |
| Precautionary Statement Codes |
P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P273:Avoid release to the environment. P280:Wear protective gloves/protective clothing/eye protection/face protection. P391:Collect spillage. Hazardous to the aquatic environment P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P337+P313:IF eye irritation persists: Get medical advice/attention. |
Computed Descriptors for 4,4'-Dichlorodiphenyl sulfone
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