© 2026 Sinochem Nanjing Corporation,
All Right Reserved
5-Bromo-2-(2-Methyl-2H-Tetrazol-5-Yl)-Pyridine belongs to a group of specialty chemicals used mainly in laboratory research and as an intermediate for more complex molecules. The compound’s structure, featuring a bromine atom attached to a pyridine ring and a tetrazole moiety, sets the stage for unique chemical behavior. Its smell is faint but noticeable for those who have worked around halogenated aromatics, and when handled without care, it can leave behind traces that hint at its presence.
The molecular formula for this compound is C6H5BrN6. This formula paints a clear picture for chemists: a pyridine backbone coupled with a methyl-substituted tetrazole, made more reactive due to the bromine atom. Structure matters a lot because having the bromine on the fifth spot of the ring changes the reactivity. In synthetic practice, such molecules act as key ingredients for building more complex drugs and materials.
Physical form takes center stage for lab personnel and manufacturers. 5-Bromo-2-(2-Methyl-2H-Tetrazol-5-Yl)-Pyridine usually shows up as a solid. The color sits in the off-white to pale yellow range, with finer samples coming as powder, coarse granules, or shimmering flakes. Density, although influenced by the exact crystalline form, anchors around 1.7 grams per cubic centimeter. The compound agrees to dissolve in some polar organic solvents. In water, it barely budges. The melting point hovers in the region of 120‒135°C, based on my memory of melting similar brominated heterocycles in glass vials on a sand bath.
In handling and storage, it takes a bit of experience to keep things safe. Wearing gloves, working in a well-ventilated space, and storing the material in tightly sealed bottles will serve any lab. Spillage clean-up goes best with a gentle brush and dustpan – don’t try to wipe with damp cloths unless you want it smeared across the whole bench. Most suppliers package it in glass bottles to prevent reactions with plastics.
At a molecular weight of 241.06 g/mol, the compound offers a distinct mass that influences every measurement from solution prep to chromatogram analysis. Chemists appreciate such precision because, when developing a new synthetic route, knowing the exact weight keeps the batch consistent. Purity usually stays above 97%, signaled on certificates with HPLC or NMR spectra as proof.
International movement of this molecule operates under the HS Code 29333999, flagged for “heterocyclic compounds with nitrogen hetero-atoms only.” This matters, as shipments across borders may invite scrutiny and extra paperwork. Labs ordering from overseas suppliers should check country-specific lists for any red flags. It’s been my experience, dealing with customs, that a correct and clear HS code smooths the process.
Most users see this compound in powder form, though it can also crystallize as long, pale yellow needles. Some batches break into pearly micro-flakes, reflecting light under the fume hood lamp. Each form pours differently, so weighing and transferring require a practiced hand and a steady spatula. In the rare case where a solution is used, concentrations get prepared using measured amounts in DMF or DMSO, but there’s always care to prevent rapid degradation.
Packing and shipping density find influence in crystalline structure: a denser sample pours slowly, while a fluffier batch can go airborne if handled carelessly. Bulk users take density into account when planning storage – a one-liter bottle comfortably holds several hundred grams. In industrial settings, it helps to know how much warehouse space is needed and whether special storage is required for hazardous goods. In the lab, I’ve had to make quick mental conversions to avoid running low in the middle of a synthesis.
Health and safety stay front-of-mind for everyone who works with specialty chemicals. 5-Bromo-2-(2-Methyl-2H-Tetrazol-5-Yl)-Pyridine demands respect as a raw material: inhalation, skin contact, or accidental ingestion can irritate or harm. Long sleeves, goggles, and nitrile gloves make sense as standard protection. Safety data sheets identify it as harmful with GHS hazard codes for skin and eye irritation, and possible respiratory discomfort. Labs keep eyewash stations and spill kits handy. Direct disposal to sink or trash doesn’t fly; instead, chemical disposal units handle small quantities through incineration or solvent neutralization.
In industry and research, this compound rarely acts alone. It acts as a building block in making more valuable substances, such as pharmaceuticals, crop protection agents, and specialty polymers. It brings a useful blend of stability and reactivity. Its tetrazole moiety, familiar to medicinal chemists, mimics carboxylic acids and appears in drugs for cardiovascular diseases. That property gets exploited again and again. I’ve used similar intermediates for making API candidates — their flexibility changes what’s possible on a bench scale and influences what big projects get greenlit.
Every chemical like this one deserves attention for its environmental impact. It doesn’t break down quickly in water or soil, so containment matters. Facilities rely on chemical traps and strict labeling to keep materials isolated. In practice, extra caution comes through double-bagged waste and keeping spill areas controlled. Most users find that careful use, proper storage, and respect for hazard labels serve both health and environment. That routine may seem basic, but the consequences of a skipped step show up fast: I’ve seen minor spills of similar substances prompt emergency clean-ups and lots of paperwork.
To blunt the risks, every user can keep clear records, label everything, and stay up-to-date on SDS sheets. Training teams on safe handling works. Automatic ventilated cabinets help reduce personal exposure. On the supply chain side, choosing packaging that resists damage during transit lowers the chance of accidents. With raw materials as specialized as this, creating secondary containment – like using spill trays – reduces impact if anything leaks. Sharing knowledge between colleagues about new hazards or incidents makes everyone sharper and keeps workplaces safer.
