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Description
TCI D4103 Bromoxynil, CAS number 1689-84-5, is a hydroxylated benzonitrile compound carrying two bromine atoms on its aromatic ring. The substance is widely known as the active ingredient of the hydroxybenzonitrile class of herbicides, and in the laboratory setting it serves a dual role as an analytical reference material and as a synthetic building block. This role is important for laboratories that test pesticide residues in agricultural products, water, and soil, because the availability of a reference substance with a clearly established identity is an absolute requirement for analytical method development, instrument calibration, and verification of residue testing results.
The properties that make this compound a preferred choice are the combination of a phenol group, a nitrile group, and two bromine substituents, which together produce a distinctive spectral signature in both mass spectrometry and infrared spectroscopy, so that identification can be established relatively easily. The characteristic bromine isotope pattern is particularly helpful for confirming peaks in gas chromatography and liquid chromatography coupled to a mass spectrometer. From the synthetic standpoint, the acidic hydroxyl group can be etherified or esterified, while the nitrile group can be hydrolysed or reduced, making this material a flexible starting point for further chemical work.
In Indonesian laboratories, this compound is typically encountered in the residue analysis workflow supporting agricultural commodity testing, environmental monitoring of water and soil, and academic research on herbicide chemistry. Analysts use it to prepare reference solutions during method development, to calibrate chromatographic and spectrometric instrumentation, and to verify results obtained from routine residue testing. Synthetic chemistry groups draw on it as a non-heterocyclic building block when constructing more elaborate brominated aromatic structures.
Laboratory Applications
- Pesticide residue analysis in agricultural products — the clearly defined identity of this reference material allows analysts to confirm and quantify hydroxybenzonitrile herbicide residues in crop and food samples with confidence.
- Environmental monitoring of water and soil — the compound serves as a reference substance when screening environmental matrices for herbicide contamination, supporting reliable identification of target residues in complex samples.
- Analytical method development — its well-defined spectral behaviour lets laboratories build, optimise, and document new chromatographic and spectrometric residue methods before those methods are applied to real samples.
- Instrument calibration and result verification — the distinctive bromine isotope pattern and clear spectral signature make this material suitable for calibrating GC-MS and LC-MS systems and verifying residue testing outcomes.
- Organic synthesis as a building block — the acidic hydroxyl group can be etherified or esterified and the nitrile group hydrolysed or reduced, giving synthetic chemists a flexible non-heterocyclic starting material.
Specifications
- Brand: TCI
- Product code: D4103
- CAS number: 1689-84-5
- Category: Chemistry > Building Blocks > Non-Heterocyclic Building Blocks
- Pack sizes: available in the catalogue pack sizes offered by TCI for this product code; please confirm the required pack size when ordering.
- Storage: store according to the conditions stated on the manufacturer's label and safety data sheet.
Handling and Storage
Store the container tightly closed in a cool, dry, well-ventilated area away from direct sunlight, heat sources, and incompatible materials, following the storage conditions stated on the manufacturer's label and safety data sheet. Keep the material in its original supplier container or in a chemically compatible, clearly labelled amber glass or suitable plastic container to limit light exposure and moisture uptake. Handle the compound inside a fume hood using appropriate personal protective equipment, including safety glasses, chemical-resistant gloves, and a laboratory coat. Avoid inhalation of dust, skin contact, and eye contact, and wash hands thoroughly after handling. Because this substance is a herbicide active ingredient, prevent release into drains and dispose of residues and contaminated materials in accordance with applicable chemical waste regulations. Consult the safety data sheet supplied with the product before use.
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