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Description
TCI D1332 N,N-Dimethylformamide Dimethyl Acetal [for Esterification] is a methylating reagent supplied in a specially prepared format of ten glass ampoules, each containing 0.5 mL. Widely known by the abbreviation DMF-DMA, this reagent converts carboxylic acids into their corresponding methyl esters quickly and cleanly, without requiring a strong acid catalyst or an excess of solvent. In the laboratory it plays an essential role during sample preparation prior to gas chromatographic analysis, because free carboxylic acids tend to produce broadened, asymmetric peaks on the column.
The qualities that make analysts choose this reagent lie in its single-dose ampoule packaging and the purity maintained specifically for esterification work. Each ampoule holds a pre-measured quantity, so the analyst does not need to open a large bulk container repeatedly, and the risk of quality deterioration through contact with atmospheric moisture is kept to a minimum. The methylation reaction proceeds at moderate temperature within a short time and generates volatile by-products, which therefore do not interfere with chromatographic injection.
Beyond esterification, DMF-DMA is also widely used as an enaminone-forming reagent and as a one-carbon unit source in synthetic chemistry. In Indonesian laboratories this combination of roles suits analytical services, university research groups, and quality control units that prepare acidic samples for gas chromatography while also running small-scale building block synthesis. The ten-ampoule set allows a single delivery to cover several separate work sessions.
Laboratory Applications
Methyl ester preparation from carboxylic acids: the reagent performs the conversion rapidly and cleanly without a strong acid catalyst or excess solvent, simplifying the workflow.
Sample derivatisation before gas chromatography: free carboxylic acids give broad, asymmetric peaks, so converting them to methyl esters improves peak shape on the column.
Routine analytical sample preparation: each pre-measured ampoule removes the need to repeatedly open a bulk container, which keeps handling consistent between analytical batches.
Enaminone formation in synthetic chemistry: DMF-DMA is widely employed as an enaminone-forming reagent, making this pack useful for building block work beyond esterification.
One-carbon unit introduction: the reagent serves as a source of a single carbon unit, supporting synthetic routes that require this fragment in non-heterocyclic building block chemistry.
Specifications
Brand: TCI
CAS number: 4637-24-5
Category: Chemistry > Building Blocks > Non-Heterocyclic Building Blocks
Pack size: 0.5 mL × 10 ampoules per set
Grade note: supplied as a reagent for esterification
Storage: keep ampoules sealed and protected from moisture until use
Handling and Storage
Store the ampoules in their original packaging in a cool, dry place away from direct sunlight and sources of heat, keeping each unit sealed until the moment of use so that contact with atmospheric moisture is avoided. Because the material is sensitive to water vapour, the single-dose ampoule format should be used as intended: open one ampoule per working session rather than transferring the contents into a larger shared container. Handle the reagent in a fume hood with appropriate gloves, safety glasses, and a laboratory coat, and open glass ampoules carefully to avoid cuts. Prepare and transfer the reagent using clean, dry glassware, and dispose of residues and empty ampoules through the laboratory's chemical waste procedure.
![N,N-Dimethylformamide Dimethyl Acetal [for Esterification] (0.5mL*10) (CAS 4637-24-5) - TCI D1332 - AMI Scientific](http://amiscientific.com/cdn/shop/files/TCI2510D1332.jpg?v=1767102920&width=1946)
![N,N-Dimethylformamide Dimethyl Acetal [for Esterification] (0.5mL*10) (CAS 4637-24-5) - TCI D1332 - AMI Scientific](http://amiscientific.com/cdn/shop/files/TCI2510D1332.jpg?v=1767102920&width=1445)
