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Description
Glutaryl Chloride is the acid dichloride of glutaric acid — a five-carbon chain compound bearing highly reactive acid chloride groups at both ends. Its role in the laboratory is that of a bifunctional acylating reagent, capable of joining two nucleophiles at once or building polymer chains through polycondensation reactions. Because acid chlorides are far more reactive than free carboxylic acids, reactions proceed rapidly at low temperature, which makes this reagent well suited to substrates that cannot tolerate prolonged heating or harsh acid-catalyst conditions.
Its principal characteristics are a liquid form at room temperature, which makes volumetric measurement straightforward, together with high reactivity toward amines, alcohols, and water. The two acyl chloride groups are separated by three methylene units, giving exactly the chain spacing and flexibility needed to form amides, esters, and cyclic imides. This property is what makes the compound a mainstay in the synthesis of polyamides and polyesters via interfacial polycondensation — a classic experiment that is also frequently demonstrated in polymer chemistry teaching laboratories.
As a consequence of that reactivity, the compound is highly sensitive to moisture and must be handled with appropriate care in Indonesian laboratories, where ambient humidity is consistently high throughout the year. Academic research groups, polymer chemistry teaching laboratories, and synthetic organic laboratories preparing amide and ester derivatives are the typical users. Work is generally carried out under dry conditions, with the container kept closed between transfers so that reagent quality is preserved across repeated use.
Laboratory Applications
Interfacial polycondensation for polyamide synthesis, where the two terminal acid chloride groups react rapidly with a diamine at the boundary between two immiscible phases without heating.
Polyester preparation through polycondensation with diols, taking advantage of acid chloride reactivity that far exceeds that of the corresponding free carboxylic acid under mild conditions.
Bifunctional acylation of amines to form diamides, where a single reagent links two nucleophile molecules through a flexible three-methylene spacer between the carbonyl centres.
Cyclic imide construction, in which the chain length and flexibility of the glutaryl backbone allow ring closure onto a single nitrogen nucleophile under controlled conditions.
Teaching demonstrations in polymer chemistry practicals, where the classic interfacial polycondensation experiment illustrates step-growth polymerisation visibly and rapidly at room temperature.
Specifications
Brand: TCI
CAS number: 2873-74-7
Category: Chemistry > Building Blocks > Non-Heterocyclic Building Blocks
Pack sizes: available in the pack sizes listed on this product page
Physical form: liquid at room temperature
Storage: keep tightly closed under dry conditions, protected from moisture
Handling and Storage
Store the container tightly closed in a dry, well-ventilated area, away from moisture and from incompatible materials such as water, alcohols, and amines. Glass containers with a secure, chemically resistant closure are appropriate; keep the original packaging sealed between uses. Handle in a fume hood, using gloves, safety goggles, and a laboratory coat, since acid chlorides react vigorously with water and release corrosive by-products. Transfer under dry conditions and minimise the time the container remains open, particularly in humid environments. Return the reagent to storage immediately after weighing or volumetric transfer to preserve its quality over repeated use.
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