© 2026 Sinochem Nanjing Corporation,
All Right Reserved
1-Bromo-2,4-Dinitrobenzene steps out as a member of the nitroaromatic compound family, recognized by its distinctive chemical fingerprint: a benzene ring holding both bromo and dinitro groups. Its chemical formula, C6H3BrN2O4, shapes the backbone for a range of uses in chemical synthesis and laboratory preparations. The CAS number for this substance is 585-71-7. In everyday practice, this compound finds itself in the labs as a raw ingredient for synthesizing dyes, pigments, and other organic compounds. From experience, handling this molecule kicks up a noticeable caution due to the reactivity that comes with bromo and nitro substitutions on the same ring.
1-Bromo-2,4-Dinitrobenzene often forms the backbone of specialty chemicals, intermediates for pharmaceuticals, and certain pigments. Sourcing this raw material calls for a focus on purity and consistency since impurities introduce uncertainty into final product outcomes. In real-world chemical production, any deviation from tight material quality specs can slow projects or introduce hazards during scale-up. From what I’ve seen in production environments, reliable suppliers list batch numbers and provide detailed certificates, so laboratories and manufacturers can verify lot-specific properties every time.
This compound mostly turns up as bright yellow needles, flakes, or crystalline powder. The flakes and powder dissolve with varying ease in organic solvents. As a solid, it shows off strong coloring, which helps in quick identification, especially during multi-step syntheses. Its density falls near 1.93 g/cm³, indicating a pretty hefty structure compared to simpler benzene derivatives. In experience, a crystal with that kind of density gives satisfying feedback in hand—a solid, weighty presence that resists accidental airborne transfer. On occasion, this substance is found in pearl forms, but never as a liquid under standard conditions. The melting point falls around 89-91°C, a temperature that can be reached with a standard water bath, so care in temperature control matters.
Taking a closer look at the molecule, each functional group lays claim to a spot that dictates reactivity. The benzene ring holds bromine at position 1, nitro groups at positions 2 and 4. This arrangement not only changes the electron density of the ring, but also impacts how the molecule fits into reactions. For chemists doing nucleophilic aromatic substitutions, the precise arrangement of substituents gives this molecule a unique fingerprint for targeted synthesis. Specifications for laboratory or industrial purchase usually state purity, melting point, color, and sometimes UV-vis absorbance. Companies often include moisture content and free-flowing ability for batches sold as powder or flakes, helping researchers and engineers plan out storage and handling requirements. Each shipment aligns with the Harmonized System Code (HS Code) 2904209090, as per global trade databases.
With a molecular weight of 277.01 g/mol, 1-Bromo-2,4-Dinitrobenzene stands in the mid-range for substituted aromatics. Its structure boosts both hydrophobicity and electron deficiency on the ring. Solubility leans toward organic solvents such as acetone or chloroform—useful traits when building multi-step reactions where phase separation speeds up workups. Specific gravity reflects the density: a heavier-than-average load for dry samples, so jars and bottles need secure sealing and sturdy shelving. Spectroscopic signatures, including IR and NMR spectra, paint a clear diagnostic picture for purity checks. I have learned to double-check these readings for each new batch, since spectral drift signals contamination or degradation.
Working with 1-Bromo-2,4-Dinitrobenzene never counts as routine. Nitroaromatics and halogenated benzenes both bring risks—skin contact can irritate or sensitize, and the dust triggers sneezing or worse with inhalation. The nitro groups push toxicity, so gloves, goggles, and proper ventilation make up the daily routine. Accidental spills need immediate cleanup, since colored dust travels and lingers. Disposal in the waste stream requires following hazardous waste regulations, especially in university and industrial labs. Safety Data Sheets spell out the risks: harmful if swallowed, risk of eye damage, and moderate risk as a suspected skin sensitizer. From experience, any small desk fan spreading this dust increases the chance of exposure, so it stays out of offices and away from food or open containers.
The nitroaromatic character raises the stakes for environmental risk. If released, it persists in soil and water, complicating cleanup. Some jurisdictions flag it for special reporting. For every kilogram manufactured, chemical plants manage emission abatement to capture dust and neutralize waste streams. The bromo-substituent can break down to release bromide ions, which makes water treatment systems work harder. Labs and industry need detailed protocols to contain accidental releases, a lesson learned from hard experience with spills that lingered days beyond discovery.
Mitigating hazards starts with education. Staffers handling this material should see live demos on handling, spill containment, and air monitoring—just reading the manual won’t stick. Routine safety audits catch overlooked practices: clumped gloves, aging extraction hoods, or missing hazard signage. Engineering a safer workspace involves closed handling systems, double containment for containers, and local exhaust extraction. Using single-use containers for weighing powder cuts down accidental dusting and cross-contamination. On the industry side, investment in filtration and waste minimization lessens environmental burden. Repeated training and a culture of caution prove themselves every year in fewer incidents and less chemical lost to the air or waste.
Any organization purchasing 1-Bromo-2,4-Dinitrobenzene needs to do more than check price and shipping. Responsible sourcing trusts suppliers with detailed quality specs, current safety certifications, and transparent supply chains. Companies that invest in traceability and safety show up as long-term partners, not just one-time vendors. The value goes beyond compliance—the health of lab workers, end users, and communities surrounding manufacturing plants sits on the line. Choosing wisely shapes a safer and more reliable outcome for everyone involved down a sometimes hazardous supply chain.
