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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
Pricing and availability is not currently available.

Quality Level

200

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.[1]

Application

Tetrafunctional epoxy resins can be blended with DDS and can be thermally cured which can be used in oil field applications.[2] DDS can also be used to cure iron oxide (Fe2O3) layer double hydroxide based epoxy that forms a flame retardant epoxy nanocomposites.[3] It can also be used as a hardener to cure bisphenol A (DGEBA) for use in the fabrication of flame retardant epoxy/clay nanocomposites.[4]

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

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Certificates of Analysis (COA)

Lot/Batch Number
SDBB1760
STBL2906
STBK7905
STBK7478
STBK6993

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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)
Jaesung Seo et al.
Health and quality of life outcomes, 13, 138-138 (2015-09-05)
This paper aimed to employ subject matter experts (SMEs) to assess the extent to which the Korean version of the short-form of the OHIP (OHIP-14 K) is culturally valid and equivalent in Korean. We approached 17 bilingual Korean SMEs from
Ernest Güell et al.
Palliative & supportive care, 13(2), 295-303 (2014-04-26)
We aimed to address the prevalence of desire-to-die statements (DDSs) among terminally ill cancer patients in an acute palliative care unit. We also intended to compare the underlying differences between those patients who make desire-to-die comments (DDCs) and those who
F-R Zhang et al.
The New England journal of medicine, 369(17), 1620-1628 (2013-10-25)
Dapsone is used in the treatment of infections and inflammatory diseases. The dapsone hypersensitivity syndrome, which is associated with a reported mortality of 9.9%, develops in about 0.5 to 3.6% of persons treated with the drug. Currently, no tests are
View All Related Papers

Questions

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  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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