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369462

Sigma-Aldrich

4-Aminophenyl disulfide

98%

Synonym(s):

4,4′-Dithiodianiline

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About This Item

Linear Formula:
(H2NC6H4S-)2
CAS Number:
722-27-0
Molecular Weight:
248.37
EC Number:
211-961-2
MDL number:
MFCD00007882
UNSPSC Code:
12162002
PubChem Substance ID:
24862976
NACRES:
NA.23
Pricing and availability is not currently available.

Assay

98%

form

powder

mp

77-78 °C (lit.)

SMILES string

Nc1ccc(SSc2ccc(N)cc2)cc1

InChI

1S/C12H12N2S2/c13-9-1-5-11(6-2-9)15-16-12-7-3-10(14)4-8-12/h1-8H,13-14H2

InChI key

MERLDGDYUMSLAY-UHFFFAOYSA-N

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General description

4-Aminophenyl disulfide is primarily used as a reagent in chemical synthesis. It has thiol-disulfide interchange properties, making it useful in redox reactions and the synthesis of polymers. It can participate in thiol-disulfide exchange reactions, facilitating the formation of covalent bonds with other thiols or disulfides. 4-Aminophenyl disulfide is often employed as a crosslinking agent, particularly in polymerization reactions, where it can enhance the mechanical and thermal properties of polymers. It can also act as a dopant or charge-transfer agent in conductive polymers, improving their electrical conductivity.

Application

4-Aminophenyl disulfide can be used as:
  • A crosslinker in the synthesis of self-healing poly(urea-urethane) elastomers because of its quantitative healing efficiency. These self-healing materials find applications in various fields such as drug delivery, wound healing, and tissue engineering, electronics, aerospace, and coatings.
  • A hardener in the formulation of re-processable, repairable, and recyclable epoxy networks due to the presence of dynamic disulfide bonds, which enable the epoxy networks to undergo chemical recycling. These epoxy networks are widely used in various applications which include, composite materials, coatings, adhesives, and fiber-reinforced thermoset composites.
  • A crosslinking agent for the development of epoxy vitrimers and carbon fiber composites with enhanced mechanical properties, multi-shape memory capabilities for the potential applications in high-performance materials.
4-Aminophenyl disulfide can also be used in the following:
Bioconjugation: The amine group can react with carboxylic acids or their derivatives, making it useful for conjugating biomolecules like proteins and peptides. This is particularly valuable in developing targeted drug delivery systems where the drug is directly linked to a molecule that can home in on cancer cells or other disease sites.
Diagnostic Agents: It can be used to modify surfaces of diagnostic devices, such as biosensors. They can help in the immobilization of biomolecules on sensor surfaces, improving the sensitivity and specificity of detection.

Storage Class Code

11 - Combustible Solids

WGK

WGK 2

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
STBK6009
STBK2039
STBJ8660
STBJ5870
STBJ1848

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C Domenget et al.
Biochimica et biophysica acta, 830(1), 71-79 (1985-07-18)
The effects of four thiol reagents on the kinetics of polymerization of hemoglobin S have been studied in high phosphate buffer (1.8 M), in the presence (3 mM) or absence of sodium dithionite, depending on the reduction of mixed disulfides
Martin L Henriksen et al.
ChemSusChem, 10(14), 2936-2944 (2017-05-31)
Epoxy-based thermosets are one of the most popular matrix materials in many industries, and significant environmental benefits can be obtained by developing a recyclable variant of this widely utilized material. Incorporation of a bio-based disulfide additive within a commercial epoxy
Y Maede et al.
Blood, 73(1), 312-317 (1989-01-01)
It has been shown that certain dogs have erythrocytes characterized by an inherited high concentration of reduced glutathione (GSH), five to seven times the normal level (high-GSH RBCs). We examined whether increased GSH in dog erythrocytes leads to increased protection

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    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?

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    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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