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A74807

Sigma-Aldrich

4-Aminophenyl sulfone

97%

Sinonimo/i:

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

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CHF 69.20
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CHF 245.00

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100 G
CHF 69.20
500 G
CHF 245.00

About This Item

Formula condensata:
(H2NC6H4)2SO2
Numero CAS:
80-08-0
Peso molecolare:
248.30
Beilstein:
788055
Numero CE:
201-248-4
Numero MDL:
MFCD00007887
Codice UNSPSC:
12162002
ID PubChem:
24891242
NACRES:
NA.23

CHF 69.20

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Livello qualitativo

200

Saggio

97%

Stato

crystals

Punto di fusione

175-177 °C (lit.)

Stringa SMILE

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
MQJKPEGWNLWLTK-UHFFFAOYSA-N

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Categorie correlate

Descrizione generale

4-aminophenyl sulfone (DDS) is a diamine-based hardener that is used to cure epoxy-based resins.[1]

Applicazioni

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]

Avvertenze

Danger

Indicazioni di pericolo

H302,H360F,H371,H373,H411

Classi di pericolo

Acute Tox. 4 Oral - Aquatic Chronic 2 - Repr. 1B - STOT RE 2 - STOT SE 2

Organi bersaglio

Blood, Blood,spleen,Liver

Codice della classe di stoccaggio

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

Classe di pericolosità dell'acqua (WGK)

WGK 3

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable

Dispositivi di protezione individuale

dust mask type N95 (US), Eyeshields, Gloves

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Certificati d'analisi (COA)

Lot/Batch Number
SDBB1760
STBL2906
STBK7905
STBK7478
STBK6993

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Knorr Jr DB.
Polymer, 53(25), 5917-5923 (2012)
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Jena RK, 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
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Synthesis of a Fe3O4 nanosphere@ Mg-Al layered-double-hydroxide hybrid and application in the fabrication of multifunctional epoxy nanocomposites.
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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
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Questions

1–2 of 2 Questions  

  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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