A74807

4-Aminophenyl sulfone

97%

• Synonym(s): 4,4′-Diaminodiphenyl sulfone, 4,4′-Sulfonyldianiline, Bis(4-aminophenyl) sulfone, DDS, Dapsone
• Linear Formula: (H₂NC₆H₄)₂SO₂
• CAS Number: 80-08-0
• Molecular Weight: 248.30
• Beilstein: 788055
• EC Number: 201-248-4
• MDL number: MFCD00007887
• UNSPSC Code: 12162002
• PubChem Substance ID: 24891242
• NACRES: NA.23

Properties

• Assay: 97%
• form: crystals
• mp: 175-177 °C (lit.)
• SMILES string: Nc1ccc(cc1)S(=O)(=O)c2ccc(N)cc2
• InChI: 1S/C12H12N2O2S/c13-9-1-5-11(6-2-9)17(15,16)12-7-3-10(14)4-8-12/h1-8H,13-14H2
• InChI key: MQJKPEGWNLWLTK-UHFFFAOYSA-N

Description

General description

4-aminophenyl sulfone (DDS) is a diamine-based hardener that is used to cure epoxy-based resins.

Application

Tetrafunctional epoxy resins can be blended with DDS and can be thermally cured which can be used in oil field applications. DDS can also be used to cure iron oxide (Fe₂O₃) layer double hydroxide based epoxy that forms a flame retardant epoxy nanocomposites. It can also be used as a hardener to cure bisphenol A (DGEBA) for use in the fabrication of flame retardant epoxy/clay nanocomposites.

Safety Information

• Pictograms: GHS08,GHS07,GHS09
• Signal Word: Danger
• Hazard Statements: H302,H360F,H371,H373,H411
• Precautionary Statements: P202 - P260 - P264 - P273 - P301 + P312 - P308 + P311
• Hazard Classifications: Acute Tox. 4 Oral - Aquatic Chronic 2 - Repr. 1B - STOT RE 2 - STOT SE 2
• Target Organs: Blood, Blood,spleen,Liver
• Storage Class Code: 6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
• WGK: WGK 3
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves