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A74807

Sigma-Aldrich

4-Aminophenyl sulfone

97%

Synonym(s):

4,4′-Diaminodiphenyl sulfone, 4,4′-Sulfonyldianiline, Bis(4-aminophenyl) sulfone, DDS, Dapsone

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About This Item

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

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

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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.

Signal Word

Danger

Hazard Statements

H302,H360F,H371,H373,H411

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

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Jaesung Seo et al.
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Study of Thermal Stability and Flame Retardancy of Epoxy/clay Nanocomposites Containing Triphenyl Phosphate and Zinc Stannate.
Jangra P and Dahiya JB
Industrial & Engineering Chemistry Research, 7(8), 626-633 (2017)
Synthesis of a Fe3O4 nanosphere@ Mg-Al layered-double-hydroxide hybrid and application in the fabrication of multifunctional epoxy nanocomposites.
Kalali EN, et al.
Industrial & Engineering Chemistry Research, 55(23), 6634-6642 (2016)
A novel high performance bismaleimide/diallyl bisphenol A (BMI/DBA)-epoxy interpenetrating network resin for rigid riser application.
Jena RK, et al.
Royal Society of Chemistry Advances, 5(97), 79888-79897 (2015)
Glass transition dependence of ultrahigh strain rate response in amine cured epoxy resins.
Knorr Jr DB.
Polymer, 53(25), 5917-5923 (2012)
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