Adipic acid dihydrazide (ADH) is a chemical used for
cross-link
In chemistry and biology, a cross-link is a bond or a short sequence of bonds that links one polymer chain to another. These links may take the form of covalent bonds or ionic bonds and the polymers can be either synthetic polymers or natural ...
ing water-based
emulsion
An emulsion is a mixture of two or more liquids that are normally Miscibility, immiscible (unmixable or unblendable) owing to liquid-liquid phase separation. Emulsions are part of a more general class of two-phase systems of matter called colloi ...
s. It can also be used as a hardener for certain
epoxy
Epoxy is the family of basic components or Curing (chemistry), cured end products of epoxy Resin, resins. Epoxy resins, also known as polyepoxides, are a class of reactive prepolymers and polymers which contain epoxide groups. The epoxide fun ...
resins.
Adipic acid dihydrazide - Adipic dihydrazide - ADH
ADH is a symmetrical molecule with a C4 backbone, and the reactive group is C=ONHNH2. Dihydrazides are made by the reaction of an organic acid with hydrazine
Hydrazine is an inorganic compound with the chemical formula . It is a simple pnictogen hydride, and is a colourless flammable liquid with an ammonia-like odour. Hydrazine is highly hazardous unless handled in solution as, for example, hydraz ...
. Other dihydrazides with different backbones are also common, including isophthalic dihydrazide (IDH) and sebacic dihydrazide (SDH).
References
External links
Preparation of Enzyme Conjugate through Adipic Acid Dihydrazide as Linker
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Technical Article About the Chemistry and Use of Dihydrazides in Thermosets, Including ADH
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Hydrazides